Fantastic post from Scott.
I recently blogged about the impossibility of buying a Chevy truck with the features you want. The quick summary is that there are so many truck features and options that it would be almost mathematically impossible for a dealer to have the truck you want on the lot. Likewise, there are generally no nearby trucks at other dealerships that your local dealer can ship in for you.
The Bait-and-Switch Confusopoly Economy