eBay is apparently doing everything it can to discourage the kind of
auction-based digital flea market it so gloriously was in its
beginning. It's becoming increasingly difficult to use, that way, and
many buyers and sellers of wondrous fifth-hand hyper-specialist gomi
are getting very discouraged. A market is being created, thereby, for a
purpose-built all-gomi auction site, optimized for people who want
(nay, need) to buy and sell, say, anonymously designed 20th-century
American workwear, one piece at a time. Or, really, whatever. Used.
Gomi. Junk. Clinically otaku-searchable, no fuzzy logic messing with
your carefully refined strings. Micro-transactions. For dropshipping of
boring new merch, there'll always be eBay.

The business model, basically, would be what eBay was about eight years ago.