The other area they can't complete is on variable or disaster recovery scenarios, the sort where you'll reserve CPU instances, but only spin them up for your heavy load parts of the day or when you have an unexpected migration. And when you're not using them, AWS puts them on their spot market.
They're probably a bad match for when you have a single batch of work to do, like when the New York Times converted their archives, or every time Netflix has to reencode their video library.
They're probably a bad match for when you have a single batch of work to do, like when the New York Times converted their archives, or every time Netflix has to reencode their video library.