This is only a good deal if you're a collector. I picked up an atari 7800 and a colecovision at a garage sale for $20 (and a huge box of controllers, games, etc) a year ago... I thought, Man! Donkey Kong on my big screen! The novelty wore off in about 30 minutes. Decided that I was better off with MAME. I got 30 for the coleco and 6 games, I gave the atari to a friend's 3 year old (update - 1 year later - kid now has playstation, atari in trash).
Besides you can find these on ebay all the time if you're hardcore.
The only vintage game system I'd even think about nowadays would be a vectrex, but even then, I dunno...