The local consignment shop that I went to to look for NES games doesn't have ANYTHING Atari. But he had other systems all they way up to PS2 and XBOX. In fact, he had about 15 Nintendo systems and two boxes full of games.
I think a lot of people are holding on to their Atari's in hopes of their value going up. For me, if I saw one at a garage sale with no games, I'd probably pick it up for $20, but not much more. I liked Atari, but I do not see them around often. Unless you eBay, that is.