Yeah you are right, there is no perfect alignment. I also agree that the usage based pricing from AWS is different from my hourly pricing (hourly being a subset of usage based).
I've never seen hourly based pricing being used for tools before. But hourly based pricing is common for human services and also for things such as AWS Lambda or VPS's. You could make an argument for AWS having an incentive for slow running lambda's.
In these cases you can test if the speed of AWS lambda is good enough for you. Similarly you can try out my app (for free) to see if it's slow or fast, and you can see this directly instead of having to rely on AWS's logs.
Anyway thank you for your feedback. It's really valuable for me to read these responses!
