Why Koreans Calculate an Item's Resale Value Before They Buy It

Someone in Korea pulls an unworn winter coat from the closet and lists it on a secondhand app. Familiar scene. But here’s the twist: many Korean shoppers in their 20s and 30s now move in the opposite order. Before they buy the coat, they search first. “This model — if I wear it one season and resell it, how much do I get back?”

The order has flipped, and that’s the whole point. If secondhand trading used to be a tail-end act — something you did after you were done with a thing — in Korea it has become a front-end calculation you run before you buy. You see the selling moment at the buying moment.

This piece chases a single question: how did secondhand trading in Korea evolve from “saving money” into “managing an asset”? It’s not really a thrift story. It’s a story about how the very criteria for deciding what to buy have changed — and Korea is one of the clearest places in the world to watch it happen.

Key takeaways

• Korea’s secondhand (recommerce) market is estimated to have grown from 4 trillion won in 2008 to about 43 trillion won in 2025 — more than tenfold in 17 years — Hana Institute of Finance / KISA.
• On Bunjang, more than 60% of users are in their 20s and 30s. They shop with “recommerce literacy,” weighing resale value from the purchase stage — Platum, Money Today.
• The dark side grew too. In 2025, direct-transaction fraud (including secondhand deals) hit about 120,000 cases and 874 billion won in damages — a record high — Korean National Police Agency.

What flipped — from “buying used” to “buying the resale value”

A bit of context for readers outside Korea. The country runs on a dense network of homegrown apps — Danggeun (Karrot) for neighborhood deals, Bunjang and Joonggonara for fashion and hobbies — that have turned person-to-person resale into an everyday habit. And it isn’t just the market’s size that changed. Korea’s recommerce market is estimated to have grown from 4 trillion won in 2008 to about 43 trillion won in 2025 — Hana Institute of Finance / KISA (cited by Money Today, March 2026). That’s more than tenfold in 17 years, far outpacing the country’s nominal economic growth over the same period. This number isn’t simple recession-era thrift.

Plot the size by year and you see where the curve steepens: 24 trillion won in 2021, 35 trillion won in 2024, then 43 trillion won in 2025. The era when frugality was a virtue has given way to one where secondhand trading is a default channel of daily life.

The real shift comes next. In March 2026, Money Today noted that Korean consumers have begun to acquire “recommerce literacy” — the ability to weigh, at the moment of buying, “how much could I resell this for later” and “how well will it hold its value” — Money Today. Secondhand trading has entered the picture not as the end of a purchase but as a variable at its very start.

Reframed as a grammar of consumption, the old question was “How much does this cost?” The new one is “If I buy this, use it a while, and sell it, what do I actually end up paying?” More people now view spending through a “usage fee” lens — the new price minus the expected resale price.

This isn’t a Korea-only phenomenon. The global resale market was projected to more than double, from about $360 billion in 2021 to about $770 billion in 2025 (ThredUp, 2021 report). High prices push from behind, but the bigger driver is fatigue with throwaway consumption and its environmental cost — the point where thrift, sustainability, and personal finance meet. The pandemic, which normalized contactless transactions, hit the accelerator.

Korea, though, has unusually fertile soil for this. Smartphone penetration is among the world’s highest, so app-based trading feels natural; a dense parcel-delivery network that reaches everywhere makes shipping deals routine. A fast-cycling electronics culture — new models pouring out, short replacement cycles — spins the “sell the old, switch to the new” loop faster. Add a small, densely populated country where in-person meetups are easy to arrange, and several conditions overlap to make Korea a recommerce testbed the rest of the world watches.

Why Koreans in their 20s and 30s calculate resale value before buying

A generation is driving this. On Bunjang, more than 60% of users are in their 20s and 30s, and first-quarter transaction value rose 43% year over year — Platum. Within the same market, analyses keep finding that younger users trade two to three times more actively than older ones. Why them?

The first reason is simple: money. Prices are up, paychecks aren’t, and the things people want haven’t gotten cheaper. Here, “resale value” becomes the most rational way to cut the burden. If you can buy something for 120,000 won and resell it for 80,000, your real cost is 40,000. For a generation fluent in this math, the secondhand price is core information — it accounts for roughly half of the price tag. It’s a close cousin of the YONO “buy only what you need” shift, where people buy only what they truly need.

Concrete scenes are everywhere in daily life. When a new iPhone drops, you sell the old model used and pay only the difference to upgrade. Buying a limited-color tumbler or a popular appliance comes with the calculation that “if it gets discontinued, the price might actually go up.” From the moment of purchase, a sense kicks in — “this one holds value,” “this one’s worth half the day you buy it.” Weight shifts from ownership itself toward “enjoying something for a while and passing it on.”

This shift is one branch of a larger move “from ownership to access.” For a generation that streams music instead of buying it and rents a car when needed instead of owning one, the idea of “mine forever” keeps fading. Secondhand trading sits in between as a “loose ownership” that doesn’t fully surrender the object like subscription or rental, but recovers part of the cost by reselling once you’re done. And here’s the third reason: the mere fact that you can resell lowers the psychological barrier to buying. The safety net of “if I don’t like it, I’ll just sell it” nudges a hesitating hand toward checkout.

The second reason is a shift in perception. For some items, secondhand trading has moved beyond “consumption” toward “running a portfolio” — luxury and limited editions above all. In the global resale market, luxury and limited-edition deals were estimated at about 31% of the total (ThredUp, 2022 report), and the limited-edition sneaker resale market was projected to triple from about $2 billion in 2019 to about $6 billion in 2025 (same report family). There’s even a word for buying limited sneakers, never wearing them, and reselling — “snkrs-tech,” sneakers plus investing.

A line has to be drawn, though. Strong value retention doesn’t turn every secondhand deal into an “investment” — prices can fall, leaving you at a loss, and storage and transaction costs add up. What matters isn’t “making money on resale” but that the attitude — “choose the option that loses less value” — has gone mainstream. It resembles Gen Z’s proud “dupe” culture, where value-for-money became a sign of taste rather than something to hide: the ability to choose well has itself become something to show off.

Who’s making money — platforms and “value-holding” brands

When a market grows, the money splits along new paths. The first to smile are the platforms. Danggeun’s 2024 revenue was 189.1 billion won, up 48% year over year, with operating profit of 37.6 billion won — Danggeun results (press compilation). Bunjang’s revenue jumped more than threefold, from the 14-billion-won range to 44.9 billion won in 2024. How does a free secondhand app make money? The answer is in add-on services — advertising, payment fees, escrow, and authentication.

The two leaders diverge in strategy. Danggeun, with about 11.35 million monthly users (2023) — more than eight times Bunjang’s — aims to be a “neighborhood life platform,” while Bunjang drills into fashion and hobby trading centered on younger tastes. Under the same word “secondhand,” they’re running effectively different businesses.

Even retail conglomerates have climbed aboard the 43-trillion-won market. Lotte joined the 2021 acquisition of Joonggonara (about 20 billion won invested); Shinsegae invested in Bunjang, then put secondhand luxury into its SSG.com store — Newsis. Hyundai Department Store converted the entire fourth floor of its Sinchon branch into a secondhand specialty hall, “Second Boutique” — a department store placing used goods next to new ones, hard to imagine just a few years ago. The acquisition effect shows in the numbers too: Joonggonara’s revenue rose 28.8%, from 8.7 billion won in 2021 to 11.2 billion won in 2024. A market big corporations once kept at arm’s length as “downmarket” is now one they line up to enter.

There’s one more place the money splits: the authentication services that sell “trust.” The biggest weakness of person-to-person trading is the anxiety of “is this real? is it intact?” Platforms turn exactly that anxiety into revenue. They authenticate luxury goods as genuine and guarantee them, inspect electronics and assign condition grades, and hold the payment in escrow until the buyer receives the item. Free trading stays free, but “peace of mind” gets a price — and the larger the deal and the higher the counterfeit risk, the more it’s worth. That’s how the secondhand market shifts from a simple “personal flea market” into a “trading infrastructure” layered with inspection, guarantees, and payments.

After platforms, brands with strong value retention win too. A product whose secondhand price holds up earns, in effect, a premium at the new-product stage. Apple devices keep their resale value better than Android; certain luxury bags trade above retail. For a brand, that means the secondhand market isn’t a threat that cannibalizes new sales — it can be a pedestal that lifts the appeal of new products.

This also dovetails with Korea’s emotion-driven “feelconomy”, where buying becomes a way to purchase emotion. The satisfaction of buying well, the relief of not having lost out — resale-value math carries an emotional payoff that goes beyond the money.

Now brands sell secondhand themselves — the rise of “officially certified used”

The biggest change is the attitude of brands. Companies that once saw the secondhand market as a threat to new sales are now jumping into used and refurbished businesses themselves. Apple’s official certified refurbished products are the classic case. They come with a one-year warranty, a new battery and shell, and sell for up to 15% less than new — Apple. Contrary to the “refurb means a patched-together phone” myth, official certification goes through verification on par with a new product.

The reason is clear: the belief that something will lose less value three years out is a reason to buy it new today. When a brand manages secondhand goods directly, it filters out counterfeits to protect brand value and gains a new revenue stream in inspection and warranty.

Fashion follows the same path. Patagonia long ago raised the banner “better than new” with its Worn Wear campaign, building a circular model that repairs and resells its own products — Patagonia. It looks like a paradox for an apparel brand that needs to sell more new clothes to tell customers to “mend and wear,” but the sincerity actually deepens brand loyalty. Well-made things that last and keep their value — for shoppers who weigh resale value, that’s a reason to buy.

In Korea too, official certified refurbs and trade-ins are taking hold. Carriers and manufacturers use trade-in credit to push upgrades, and specialty stores that gather only verified refurbs with warranties are multiplying. It’s a model where corporate guarantees absorb the anxiety of person-to-person trading. The perception that “used is a gamble” is shifting toward “verified used is a reasonable alternative to new.” That migration of trust may be the real engine that pushed the market to 43 trillion won.

The dark side — scams, counterfeits, and “resale fatigue”

As the light grew, so did the shadow. In 2025, direct-transaction fraud including secondhand deals hit a record high of about 119,700 cases and 874 billion won in damages — Korean National Police Agency (data submitted to the National Assembly). Cumulative cases over the last five years (2021–2025) topped 460,000, with cumulative damages over 1.7 trillion won. Over the same period, platform damage-relief requests surged about 15-fold.

The texture of the numbers is more unsettling. Fraud cases dipped from about 84,000 in 2021 through 2023, then jumped again — 100,000 in 2024, 120,000 in 2025. The bigger and more active the market, the more prey for scammers. The transaction-value curve and the fraud curve climb in parallel.

The methods evolve too. Fake safe-payment links that look like normal transactions, “empty box” scams disguised as parcel deals, and bait listings priced slightly below market are all common. Counterfeits tag along: as luxury and limited-edition deals rise, sophisticated fakes slip in, and the inspection cost of separating real from fake becomes a new line item in the deal. As trading aimed at “resale value” grew, so paradoxically did attempts to hijack that value.

There are side effects from overheated resale, too. When a hot limited edition drops, resellers sweep up the stock, and actual users repeatedly fail to buy at retail and have to pay a premium. Brands don’t welcome their products becoming objects of speculation, so some restrict unauthorized resale or fight back with lotteries and real-name purchases. It’s a paradox where trading aimed at “resale value” crowds out trading’s original purpose: reaching the people who actually want to use the thing.

There is also fatigue. The habit of converting every purchase into “resale value” inflates the invisible cost of the time and attention that buying and selling demand. Taking photos, writing descriptions, haggling, arranging meetups, staying alert for scams — all of it is labor. And despite the environmental justification, some point out that buying fast and reselling fast actually fuels more consumption. The moment “I can always resell it, so I’ll just buy it” becomes an absolution for overbuying, the circulation turns from thrift into another kind of waste. In June 2026, Electronic Times argued that recommerce should now be treated as an “industry” beyond person-to-person trading, with systems for inspection, guarantees, and dispute resolution put in order — Electronic Times.

So what should you actually do — three “resale value” lenses

You don’t need to turn this into grand personal finance. Adding a single “resale value” lens to everyday spending is enough. Three things to keep in mind.

First, search the “resaleability” once before you buy. Before a big purchase (electronics, bags, appliances), look up the secondhand going rate for the same model just once. Subtract the expected resale price from the new price and you get the “real cost.” Say two laptops appeal to you equally; even with the same sticker price, if one holds 70% of its value after a year and the other drops to 40%, the real cost of the second is double. Same price tag isn’t the same price. It also helps to know that popular models and steady sellers, common colors and base specs, are easier to resell.

Second, collect the “value-retention signals.” What protects your price at resale is, in the end, proof. A purchase receipt, the genuine box and accessories, a warranty card, clean condition — an item with all four fetches more than the same model without them. The small habits of not tossing the box and keeping condition up while you use it protect tens of thousands of won later. For electronics, register the product and keep certified-refurb records; for luxury goods, keep the warranty and dust bag. One caveat: buying things you don’t need as “investments” just because they hold value is putting the cart before the horse. Buy to use first; resale value comes second.

Third, make safeguards the default. A listing oddly cheaper than market, a counterparty who refuses safe payment and pushes a bank transfer, a deal where someone rushes you — these are almost always red lights. Use the platform’s safe payment and escrow, and when possible inspect the item in person. For high-value deals, meet, confirm it works, then pay. Running the counterparty’s account and phone number through fraud-history lookups (like Korea’s police cybercrime reporting system or services such as TheCheat) takes five minutes. Against 874 billion won in damages, those five minutes are the cheapest insurance there is.

This crossing from “saving” into “managing” is hard to reverse. The point isn’t to be swept along and convert every purchase into profit-and-loss math, but to keep balance — adding one extra “resale value” column only on big buys. Treat every object like an asset and the joy of using things disappears; ignore resale value entirely and you pay more for the same thing. Each person’s right line sits somewhere in between.

What it means globally: Korea is early to a place much of the world is heading. As resale apps, authentication services, and trade-in programs spread across markets, the “buy with the sell in mind” mindset travels with them. Watching Korea — where buying well and selling well have become one act — is a preview of how consumption is being rewritten elsewhere. The gap between people who know that grammar and use it, and those who don’t and get caught out, will only widen. Next time you face a big purchase, open the search bar just once before you tap pay: “How much will this sell for later?” That one-line habit is the first step to making the new grammar work for you.

Sources

• Money Today. Consumers with higher recommerce literacy — secondhand trading becomes not an alternative but the top choice. 2026-03. Accessed 2026-06-13. View source
• Fashionbiz. The “43-trillion-won secondhand market” — where will K-recommerce players like Danggeun and Charan compete? 2026. Accessed 2026-06-13. View source
• Platum. Bunjang Q1 transaction value up 43% year over year; MZ-generation share about 60%. Accessed 2026-06-13. View source
• Newsis. “Danggeun and Joonggonara” secondhand-trading scams surge — over 80,000 cases this year alone. 2025-10. Accessed 2026-06-13. View source
• Newsis. Lotte joins the acquisition of Joonggonara — targeting the secondhand-trading platform market. 2021-03. Accessed 2026-06-13. View source
• Apple. Certified Refurbished products — one-year warranty, up to 15% off. Accessed 2026-06-13. View source
• Eyesmag. Patagonia’s free-repair service: the “Worn Wear” campaign. Accessed 2026-06-13. View source
• Press Daily. Secondhand-trading damages up 15-fold in five years — cumulative direct-transaction fraud tops 1.7 trillion won. 2025. Accessed 2026-06-13. View source
• Korea Policy Briefing. Secondhand trading on the rise — how far do the resale and reselling trends go? Accessed 2026-06-13. View source
• Electronic Times. [ET Column] Recommerce — time to nurture it as an “industry.” 2026-06-03. Accessed 2026-06-13. View source