Argument: Economic theories much different than actual consumer behavior
"Startups: 10 things MBA schools won't teach you." OnStartUps.com: "5. No amount of academic theories on efficient pricing will prepare you completely for what people will actually do. Finding the 'optimal' price is really hard. In the meantime, remember that a sub-optimal price is a lot better than no price at all.
7. There are an infinite number of ways to spend money on marketing. You have no idea what’s actually going to work. The idea is to experiment broadly and learn lessons cheaply. On a related note, no amount of MBA marketing classes will prepare you for the day that you have to produce leads in order to close sales. As it turns out, marketing is about more than product feature matrices and the right shade of blue for your logo."