EBay, Collectors, Flea Market & Antiques

He made some points: There is only so much demand and it's based on how many people and what they remember. There could be 25 collectors of X nationwide. After they buy, you can't move it. More of this stuff survived in basements, attics, drawers and garages than he ever fathomed. There is a demographic wave: people buy in their peak earning years - 40s, 50s or so - and they buy what they recall from their childhood and what their parents and grandparents owned. After that, the junk fades from people's minds. Hence Art Deco is now fading, 50s is up and coming, 60s too, but not quite yet 70s peak. But Victorian, Art Nouveau are on the downslope.

Old football card? How old? Are they worth anything? I have some baseball cards from the 60s.