Their profit margins are tiny by design. They put all of their profits into technology investment, and have been doing it intentionally for a long time. See: ht

Their profit margins are tiny by design. They put all of their profits into technology investment, and have been doing it intentionally for a long time. See: http://www.technologyreview.com/news/520801/no-stores-no-salesmen-no-profit-no-problem-for-amazon/ http://www.technologyreview.com/news/520801/no-stores-no-sal...