Sony reduced the price for the PlayStation 3 $100 to $299 for the 80 GB model to make way for the PS3 Slim that will be $299 for 120 GB. It will be released on Sept 1. I'm not sure why you would pay the same price for the current one when you can wait for a few days and get a smaller more energy efficient model with more storage.
No PS2 backwards compatibility is kind of a bummer, I have that with my old 60 GB model, but I was thinking of getting a Slim for the bedroom primarily as a Blu Ray player / media center machine.