I see all these adds on facebook marketplace and craigslist of people with huge collections from childhood selling. Now most of us know if it's late 80's early 90's stuff it's worth about $20 not $500. But there are some that look like they may have some hidden treasures for decent prices. Anybody ever done this? Buy big lots off of craigslist or something like that and do decent? I'm not talking finding a 1000 card but maybe you find some gem mint rc's or something?