Collecting sports cards is pretty fun. My son and I have enjoyed collecting together for a few years now. I used to collect when I was a kid and then the "Junk Wax" era happened where so many new card companies entered the hobby and the cards were mass produced to the point where the new cards were worthless in the late 80's and early 90's. It has started to remind me of those times right now. Everything is super inflated it seems and I'm just waiting for the bottom to fall out. Yes, there are numbered cards, but when there are so many companies and so many variations out there, are the cards really that scarce?? I'm just hesitant to dive in right now, but that's just me. I'm probably way off here. Just be careful spending money you can't afford to lose or money that is set aside for retirement. :)