[forty]

First graviton is not magic. We switched our main service, which is a nodejs monolith, and did not get any cost improvement (we had to add more instances to handle the same workload, which ended up being equivalent cost wise). There are certainly use cases when it's better, but it doesn't seem to be the only and obvious choice for all use cases.

Second our laptops and our CI are amd64 machines, and being able to run the same docker images in prod and locally is nice, and not having to build the image with qemu on the CI is also good.

I don't mind cloud-ARM, but there definitely are good reasons not to use it (which of course don't apply to everyone)