My guess is that Billy is correct, but there's more. There's one member who's collection lists two cards, both for sale/trade: the Wagner and the Eddie Plank from that set (of which there were only 50-75 produced; it values around $10,000). Another collector says he has the complete 1909-11 T-206 set. My guess would be that they were a) trying to be impressive or b) hoping to make a pretty penny by scamming some members.
Disclaimer: My info on the Plank card wasn't known to me; rather another site member commented that info on that particular card, which was my source.
I'll never quit collecting entirely, but I am downsizing. Check out my COMC store and help me thin out what I don't want so I can buy cards that I do want. See something you like? Send me a message on here, and we can knock the price down quite a bit. I'll even take a bit of a loss if it means getting you a card you really want.