I would assume they will go away pretty fast because of power usage. SSDs are currently targeting performance because of the cost, but it seems possible to mak

I would assume they will go away pretty fast because of power usage. SSDs are currently targeting performance because of the cost, but it seems possible to make them even more (and much more) power efficient when used as high latency storage. For enterprise servers (I'm aware they are not relevant for AWS/GOOG etc), more and more often high-end machines are offered as SSD-only - for such price bracket SSDs price is already not an issue.