I'm not a fan of the PS3 and XBox, in the end all the hardware can be pure heaven, but without good, long-lasting games it's nothing.
I have a N64 and atm a Gamecube, and I still like them both because of the games. In three or more years the PS3s graphic will be average, so it all depends on the games. Even today we sometimes get our good ol' N64, stick up 4 controllers and play Mariokart on parties. Or Smashbrothers on the Gamecube. Or Mario Party. Or SSX.......
These games provide instant fun
for everyone. I don't know many games for the Playstations or the XBoxes to have this "feature".
When I want to play a shooter (Pray), I prefer my PC, same for Simulations (LFS, FS200X)
^add "We stole motion recognizing controller" here