I once sold a book (Abbie Hoffman's Steal this Book) on ebay.
It was a reprint (original is worth a lot more) and it ended up selling for a lot more that you could get it down the street at the store.
I made it perfectly clear about the reprinting and the date, but people are morons.
I admit it's sort of a dick move....
Did you see all the people selling e-mail addresses for $500 that, if you weren't really paying attention, could be confused for an actual system??
Who's going to pay $500 for ihavexbox360stosell@hotmail.com??