I think game theory is about coming from a disadvantage (the dealer knows everything about cars and getting the maximum from you) and getting a fair deal in the end, or having the advantage and getting the maximum possible. But the shown solution here, just changes the situation about information and leverage. Yes, everytime you have a disadvantage and put energy in changing to an advantageous situation, then you are in a better situation and get more out of a deal... No, I am not worried about learning nothing out of this post. I am worried about the author. He just so much does not get the point. When I use mathematics to deal with the car dealer, my intention is NOT to get the information, NOT to gain leverage through dealing skills. I want to use my logical knowledge and skills to change the game from "best dealer wins" to "most logical wins". It is really good to learn something about leverage. That is very nessesary for everybodies life, especially for us geeks, who are not naturally gifted in this area. But mathematics, too, is a strong tool, with different rules and different advantages. Please look deeper in this matter, too. There could be a real advantage for you over car dealers, who have mostly no scientific background.