I think one of the things people don't understand is we can build more shareholder value by lowering product prices than we can by trying to raise margins. It's a more patient approach, but we think it leads to a stronger, healthier company. It also serves customers much, much better.
Source: Amazon CEO takes long view: http://www.usatoday.com/money/industries/technology/2005-07-05-amazon-bezos_x.htm
Contributed by: ~C4Chaos