I bought mine last May thru the credit union pricing GM has for credit union members. It came in at a few hundred dollars below dealer invoice. I completed the deal on May 1 the same day GM announced a $1k rebate so wound up getting it for almost $5600 off sticker. I think you can open an account at a credit union for 5 dollars, depending on membership restrictions. I had to order mine to get what I wanted. If I remember right there is not but a few hundred dollars difference between a 2500 and a 3500. Go to www.nadaguides.com and build the vehicle you want so you can see the dealer invoice, which will give you a starting point, especially if you order.