I had a few left... I sold three of them last year (to a collector shop) for $170. They were relatively late - from 1966; one of Mickey Mantle, one of Willie Mays and one of Sandy Koufax.

I had a few shoeboxes worth of cards from the 50s and 60s. I used to put the lame players' cards in the spokes of my bike (to make it sound like a motorcycle) but like you, I wish I still had the majority of them. I believe my mother threw them out after I married and moved out. Who knew then that they'd be worth a lot of money?