I too always deal in the out-the-door price. Since that is what I have to pay regardless of everything else, that is all I'm concerned with. I don't usually trade, so you don't have that muddying the waters. If they give me a price I'm comfortable with, I buy, if not, I walk. There are always other vehicles out there waiting for me to buy them. I've even told them that they can put whatever number whereever they want, but I'm only paying X amount at the end of the day. I also buy used, so MSRP is always going to be a fluid number based on miles, condition, maintenance, etc.