I can remember the first time I ever saw an original Mars Attacks trading card. It was the mid-1990s and I was at the Chicago Comic Con where a dealer was selling well-worn cards for $15 each. I’d seen photos of the cards in magazines before, but that was the first time I’d ever seen an actual card myself. I almost bought one of those cards but didn’t, which is too bad. The price of original Mars Attacks cards has only gone up over the years.