Probably not. EC2 is really handy for spikes in usage but it sounds like that's not a concern for you. Maybe something like SliceHost would be a good idea for

Probably not. EC2 is really handy for spikes in usage but it sounds like that's not a concern for you. Maybe something like SliceHost would be a good idea for you. Same root access, lower prices but no automated expandability. As for "supposed enterprise uptime" -- AWS is good stuff, but it measures outages in days per year. I'm not a fan of the word "enterprise", but I don't think it allows for AWS's typical 3-8h outages.