I was doing a oil change couple day ago and I spend a time in the showroom. I want to change my 03 to 06. I ask the sale person how much will be 06 SL AWD, with Tech Pg and Touring Pg (basically I told him everything but NAV and DVD). He told me $31,400. Is it good or bad? I am kind of lost in the price ranges. Also does all the 06's has the back up camera???