Right now I only have a PS2 since I got rid of all the classics. I used to also have a NES, SNES, Sega, Gameboy, Playstation, N64, and a Dreamcast (coolest thing ever).
The only thing I like about the new slimline PS2 is that it has built-in networking. Other than that its stupid....you don't need it that thin because it's going to stay at home anyways, so whats the point? Also, the darn thing is so frickin' thin that you have to shut it down in about 2 hours, or it'll overheat. And, Sony still didnt learn....WHY IS THERE STILL 2 GODDAMN CONTROLLER PORTS!!!!!