I’m into retro audio, cassettes, records, etc. I’ve noticed that all the thrift stores get raided by the resellers often. Same with the good clothes. There’s a “vintage” store at my local mall that sells oils thrift clothing, like the nice band t shirts, and they sell them for like $50
The whole retro game market has become this as well, just resellers buying up all the games and reselling then for absurd prices