Bill Gates laid it out in a magazine interview. He said, "I buy all my books at Amazon.com because I'm busy and it's convenient. They have a big selection, and

Bill Gates laid it out in a magazine interview. He said, "I buy all my books at Amazon.com because I'm busy and it's convenient. They have a big selection, and they've been reliable." Those are three of our four core value propositions: convenience, selection, service. The only one he left out is price: we are the broadest discounters in the world in any product category. But maybe price isn't so important to Bill Gates. Nice.