I hear people talk about amazon and rant about no profits, and even though it's an absurdity on the face of it they believe it , like they believe lots of silly things.
First thing I googled up explains a lot of what's going on.
If you think the market is going to get something like this wrong for 20 years, you must be smoking something pungent.
http://a16z.com/2014/09/05/why-amazo...-why-it-works/