anything you see sitting at a flea market late in the day, was most
likely already tried on ebay, and didn't reach reserve, or got no bids.
sometimes you'll see stuff at flea markets that seems valuable, and
underpriced, and no one is biting

that's cuz the marketeers already know, that particular item is
hammered on ebay, too many listed, and the price is down- so they are
cutting their losses and just dumping it

marketeers will tell you, they'd rather sell it cheaper at the show,
than for slightly more on ebay- because of ebay and paypal fees, and
packaging work involved- and nitpicking assholes like DeserTBob on
EBay, who want gold for a penny and free shipping