The Maze: Recommerce means selling products for another turn of use. But a secondhand T-shirt, camera and car part need very different buying journeys. European Internet Ventures, a marketplace transaction adviser, maps 12 specialist resale categories alongside broad horizontal platforms. Its September 30 analysis makes a useful distinction: category focus creates value when it removes transaction friction. Taking responsibility for the physical work is a separate choice, with separate costs. A niche is a starting point. It is not an operating model.
Twelve verticals show how varied the customer problem is. Fashion, luxury and watches sit beside electronics, furniture, sports, collectibles, baby products, books, music gear, car parts and business surplus. These categories span consumer and business inventory across markets; this is not a Europe-only census. Broad platforms still offer the convenience of selling several types of item in one place. Specialist platforms need a reason for buyers and sellers to leave that existing liquidity. A narrower catalogue alone does not supply one. EIV's examples are illustrative, not exhaustive, and the number of listed brands tells us nothing about market share.
Four conditions make specialist infrastructure more useful. Dispersed buyers and sellers benefit from wider reach; shipping must be affordable relative to resale value; condition needs a reliable description; and authentication matters when buyers cannot verify the product themselves. These conditions can overlap. Watches need reference numbers and provenance. Used car parts need compatibility information. Ovoko, a used-parts marketplace, adds inventory and compatibility infrastructure; Reverb, a music-equipment marketplace, adds specialist pricing and product data. These examples explain the job being solved, rather than establish which category earns the best margin.
Specialisation does not require owning every operational step. Vinted and Depop leave most physical transaction work with sellers. The RealReal receives goods, authenticates and inspects them, creates listings, stores inventory and fulfils orders. Electronics supports another range of models: Back Market connects buyers with professional refurbishers, while Swappie acquires and refurbishes devices itself. Taking on more work can make buying easier and support higher monetisation. It also brings labour, facilities, handling and sometimes inventory funding. A higher fee is not automatically a better business. The useful comparison is the value of each service against its cost.
Expansion works when capabilities travel with the audience. EIV cites Whatnot moving beyond collectibles and Vinted moving beyond fashion. Shared buyers, sellers and transaction systems can make adjacent categories attractive. But trust in clothing does not automatically establish expertise in another product's condition, compatibility or authentication. Horizontals can also add specialist experiences, as Finn does for phones, while keeping their existing traffic. The sensible expansion test is therefore concrete: which customer needs and operating capabilities can the platform reuse, and which must it build again? EIV leaves the wider replicability of these expansions unresolved.
Why it matters: Resale operators face two linked decisions: which transaction problem deserves specialist investment, and how much work the platform should handle itself. Start with the customer's hardest uncertainty, then price the cost of removing it. For investors, category labels hide differences in staffing, inventory exposure and capital needs. For operators, an adjacency deserves attention when existing trust and infrastructure transfer. Twelve categories give a map of possibilities, not twelve equal investment cases.
