Aside from Facebook and Fleabay (ridiculous prices), are there any active and relatively reliable online marketplaces that tend to only deal in the sort of gear that we are accustomed to?

I'm tired of seeing auctions for a 20 year old filthy AF mid tower case missing 75% of what it came with new selling for 200 dollars or more.

I don't have a good vintage market locally, and I'm just getting kind of disillusioned when it comes to some builds that I'm in the middle of.