"At the time I was at Amazon, working on the retail site, none of Amazon.com was running on AWS. I know, when AWS was announced, with great fanfare, they said "the services that power Amazon.com can now power your business!" or words to that effect. This was a flat out lie."
I remember reading that but somehow forgot about it. It makes me wonder if the creation of AWS was an end run around devs and/or ops teams unwilling to evolve. Very political organizations seem to have such a hard time with big shifts in thinking.