I listed my entire personal collection on a marketplace I've been building. 159 cards, 108 themed lots, every price is real and I'll honor every sale that comes through.
Honestly though, I'm less worried about moving cards right now and more interested in figuring out what a card marketplace should actually feel like to use. The existing ones all feel clunky to me and I don't think any of them were really built with collectors in mind.
So before I keep building I wanted to ask people who actually buy and sell on these things. What makes you close the tab on a marketplace within the first 10 seconds? Is there one feature you keep wishing existed that nobody has built yet? And what would it actually take for you to try something new instead of just defaulting back to eBay?
Link is here if you want to look around: https://storefront.slabtrack.io/slabtrackshop
Browse it, roast it, buy something if a card hits for you. Mostly just tell me what's missing.