Perhaps I was just young and naive but considering the number of investors who bought into the stock market craze in the late 90s, and then into housing in the mid-2000s, investing in the suddenly-saturated market of sports cards in the early 90s turned out to be trivial. But I, like others at that time, found myself at trading card shows, paying top dollar for cards that were sure to keep soaring in value. After all, we all heard stories about those baseball cards of yesteryear that were now worth hundreds-of-thousands of dollars, so of course those Upper Deck and O’Pee Chee Premiers would eventually pay for retirement.