1984 Purina Proof Strips from Topps Vault
 

These mostly sold very strongly. I am surprised, given how common the set itself was and how boring the design is.

I love Topps Vault stuff, certain players always bring a premium, but it does seem to me that the prices are rising.

I can say I am very glad I don't have competition for most stuff the way Henderson collectors do! I know there are more players who always do very well, but Henderson seems to always be near the top on the tough, unique stuff.

I agree, the Rickey and Rose stuff is always out of sight! It seems that the Gary Carter stuff has started to increase, not in resale value, but the stuff that comes up now is going for higher prices than in the past.