a) 5hrs/week is negligible compared to that potential AWS bill. b) The seem tolerant of failures so it's not going to be anything like 5hrs/week of physical ma

a) 5hrs/week is negligible compared to that potential AWS bill. b) The seem tolerant of failures so it's not going to be anything like 5hrs/week of physical maintenance. It will be bursty though (eg. box died, time to replace it...) but assuming they have spares of everything sitting around / already racked it shouldn't be a big deal.