I have it. It's a great game on single player and I haven't played it on Live. I just haven't seen the use for paying the $50 or $60 to go online for 360 when I can go online for free with SOCOM 3 on PS2 now. I have played Halo on Live when I had 1 month free but didn't really get into it. I would much rather stick to SOCOM right now.
As far as Burnout: Revenge, I'll be looking for it. I will probably pay the Live membership within the next couple months here. My screen name is CentreFire. There's a Freeper gamer thread around here somewhere but I just haven't joined yet.
50 to 60 bucks for each game is a bit much. In a couple years, if the majority of games cost 20 to 30 dollars each, it'll be a good buy.
I can't really get into Halo online, either, but I really enjoyed Call of Duty 2 on the rare occassions I was able to log on. Burnout is scheduled to be in stores on March 7th, and I'm really looking forward to it.