I know you don't want/need a 4X4, but in my opinion the resale on a 4X4 is worth the intial expense - you will get most of it back in trade, whether you use it or not. -only my opinion.
If you MUST get a two wheel drive (UGH!) and CAN get the rebate, why not get the Z66 pkg.
If the rebate is not in the equation and you still want a two wheel drive, then why get the Z66 pkg.?
A two wheel drive Avalanche is like a Pepsi without the fizz, a hot dog without the mustard, a boat without a motor...................
My
-slacker