I got my X-box on launch day, (pre-ordered a bundle from EBX).
I own 5 games:
1. Halo (Great game, but after playing it for 12 hours straight one night I need to take a break from it)
2. Oddworld (Need to get the time to start playing this game seriously)
3. DOA3 (Fun game, especially when you have a few friends over)
4. NHL 2002 (Same as above, except 4 player hockey!)
5. Amped (Good game, could use better multiplayer support, but overall fun)
I rented PGR, Madden, and I've played TransWorld Surf
PGR isn't my kindof game because I didn't like MSR but I might rent it again to try the "unlock all cars" mode to see if its more entertaining.
Madden was fun, but I don't play football video games so it didn't really interest me too much.
TransWorld Surf is cool, but its really hard, doesn't feel like any other extreme sports game.