One of the biggest problems with incentives for automakers (other than the obvious) is sticker price. Sticker-shock is easily cured by an ample helping of cash-back but when you're shopping on-line, comparing sticker price to sticker price, that antidote is not there. GM is fighting the January mid-size SUV down-turn with a cut of $1500 off the sticker of Trailblazers and Envoys and $2000 off the extended wheelbase version of the same trucks. The trucks keep a $2000 incentive also. Trailblazer's new price undercuts the Explorer and Durango by a few hundred dollars.