Posted By:
warshawlawbecause as kids we either used them or chucked them. No doubt they survived in much lower #s than other cards from the same sheets.
Edited to say: We used to have an especially fun game for checklists involving pitching them out of the 8th floor window of a friend's home above Park Avenue in NYC to see if we could get them all the way across the street. After, we'd go downstairs to look for the cards, which we rarely found. I was 10, BTW; it wasn't a recent thing