Personally, I think the very best use case for "cloud" is backup servers. Think of it, run a 'small' instance to slave your database and other stuff to EBS s

Personally, I think the very best use case for "cloud" is backup servers. Think of it, run a 'small' instance to slave your database and other stuff to EBS storage, and once a month practice bringing up production on "the cloud" - cheapest and most complete backup system I can think of.