The real reason is his business is probably plateauing and he didn't want to say that publicly. That would make much more economic sense as a reason to move off of AWS.
Might be true. If you have stable load moving off of EC2 can save you at least 50% over reserved instances, and >90% on bandwidth costs. If you no longer need amazon's scaling advantage, it's a very easy call to make.
Of course that's assuming you haven't locked yourself into amazon's databases/load balancer/... But that would be a horrible idea anyway, right up there with running a microsoft stack licenced per year.
Of course that's assuming you haven't locked yourself into amazon's databases/load balancer/... But that would be a horrible idea anyway, right up there with running a microsoft stack licenced per year.