For the record I agree with you but existing customers who are heavily invested in AWS would find it difficult to vote with their dollars.

Agreed. I have a couple of clients that have a pretty substantial AWS spend, but the cost of switching to Azure is too high compared to the difference in offerings. You don't want to spend tens of thousands of dollars of developer time and risk switching datacenters for a small improvement.

yeah, it works out great for amazon. less work, more money, what's not to love.

It's difficult to change when you have reserved instances. A business decision yesterday might not be the best decision today. That being said, I think overall AWS is very good but Google is definitely starting to create some real competition which is positive for everyone.