> Much more friendly and option 3 will give them greater revenue. Or perhaps not: if this were the option offered, no one would pay for standard EC2 instances

> Much more friendly and option 3 will give them greater revenue. Or perhaps not: if this were the option offered, no one would pay for standard EC2 instances at all, they'd just put up spot reservations and take the lower price when it's available, paying the ordinary price when it's not. They can do that now, of course, but there's significant more complexity involved.