Not so good IME. I've worked at two pawn shops - my experience with electronics and cameras at pawn shops is that they usually are pawned with something broken or otherwise not right. if nothing else, they are tired, last gen stuff.

the good stuff, the loan customer usually picks back up. only when there's a problem does the equipment get left.

at the price of new, cheap digital cameras, there's no good reason to purchase a digital camera at a pawn shop.

the crazy guy on a bike article linked to by the OP suggests 2MP cameras are sufficient !

pawn shops are GREAT places for : hand tools, leather coats, collectibles, jewelery, musical instruments, non digital cameras and accessories.

Pawn shops offer up a lot of stinkers in the electronics, cordless tool, computer and digital camera departments.