Flexibility is the only major reason to go with them, redundancy's easy enough to achieve with additional servers. I don't know if the price would be within 10

Flexibility is the only major reason to go with them, redundancy's easy enough to achieve with additional servers. I don't know if the price would be within 10 - 15 percent, you're really paying a premium and across multiple billing streams, very easy for it to be a lot more expensive than that.