The only systems I keep currently hooked up to my TV: Atari 2600 (Taz, Warlords, and a couple others), NES (without a doubt the best gaming had to offer, check out ROMS/Emulators or at least the Wii store), PS2 (The original couple Tony Hawk's, some RPG's, and a scattering of others), and the Wii. I own every system, and close to every game for each of them since I did the reviewer gig and without a doubt those are the tops. Out of the 360/PS3 there are at best 3 games total that I enjoy and only 2 on the horizon for the next entire year.
A lot of us that grew up on the Atari 2600 are aging and have limited time and interest in rehashed leftovers. The kids coming up now have so many entertainment options that gaming is minor and the more social aspects are what they want like the Rock Band junk. Gameplay and depth are secondary to gamer scores and friends. It's polarizing and game companies can't reach both audiences at once, so there is a rift. Things are fragmented, and only getting more so.
Again, thanks for a good chat... sadly work calls.