I've bought probably 100 to 150 dollars worth of Rock Band DLC this year.  It's the only DLC I've bought for anything though.  Hell, I bought $14 worth of No Doubt songs tonight and I see myself buying a lot more next year.  I really don't see me buying any other DLC outside of gta4 maybe.

Are the No Doubt songs on there good? (Do they go to 2003 and above?)