Attention: TDR Forum Junkies 
yeah, 3 ways they can get over on you, and if you eliminate them providing financing or being able to take a trade, there is only one area that has any wiggle room in it for the dealer side to work their financial magic.
the ability to walk out from a deal also works wonders on negotiating time. I've told them they have 15 minutes to give me an out the door price .. and I left..
