I can still roll my own cheaper, faster, with better geographic distribution, and with fewer headaches, thanks to the fact that I'm not paying yet another third party.

To put it another way, ask 'em for a firm quote on storing 5PB/year, hopefully increasing by 25%/year, for the next 5 years. You will not get a quote. The cloud is just that ... a cloud. Ephemeral, and likely to either leak or evaporate at the slightest provocation.

But what do I know.