> Whatever these numbers come out to, it's clear that if you're small and need unpredictable agility, AWS is cheaper. If you're larger and have enough foresight

> Whatever these numbers come out to, it's clear that if you're small and need unpredictable agility, AWS is cheaper. If you're larger and have enough foresight into your usage pattern, AWS is never cheaper at the right economy of scale. Isn't that pretty much just a rule of the economy? Something like "It will always be cheaper to do it yourself, at a sufficient scale"?