I admit I've been a bit skeptical about this game. I decided to test the waters by playing Fallout 3 instead and ended up being thoroughly blown away with it. I then watched a bit of footage from New Vegas and it's amazing how both games seem to differ in feel and atmosphere. F3 seems more oppressive down to the greenish tint of everything while New Vegas seems to have a more mellow feel to it, although I could also be completely wrong about this, of course!
Needless to say I really have a hankerin' for some New Vegas now but knowing Bethesda's track record with the PS3, I'm gonna have to wait for some impressions on how well the Ultimate edition performs, the wait is going to kill me. :/