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I guess self-service is good most of the times, but how is it going to handle temporary increase in resource usage? Think of a big infra refactoring project where a team may create lots of temporary instances and terminate them after a couple of months.

What's your view on Saving Plans vs Reserved Instances? Saving Plans seem to be much more flexible overall. Why only RIs then?

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Usage refreshes its recommendations on a daily basis. When your instance count increases, Usage buys RIs. When it decreases or changes, Usage sells RIs.

Our RIs are actually more flexible than SP. There is no commitment and if you want to change region or instance type, Usage will buy the old type and sell you the new type.

We chose RIs because AWS allows us to buy and sell RIs. There is no marketplace for SPs at the moment.

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