Saw this on Slate, I'm now worried about the 10 long boxes of comics I've got stowed in the kid's room.
Baseball cards peaked in popularity in the early 1990s. They've taken a long slide into irrelevance ever since, last year logging less than a quarter of the sales they did in 1991. Baseball card shops, once roughly 10,000 strong in the United States, have dwindled to about 1,700. A lot of dealers who didn't get out of the game took a beating.