Do people still trade baseball, basketball, football cards? I've got thousands of basketball cards from 1989-1991. David Robinson rookie, old Jordan, whole sets, etc. I don't have a clue how to cash these in. Anyone into this kind of thing? I was thinking about subscribing to beckett.com to get prices. I don't ever see card dealers around anymore, though. I may have over $1K of cards for all I know.