The heartburn I have is how this stifles innovation for some. The cost of experimentation is high if every person wanting to try a new idea goes down this road.

My personal AWS account is stuffed with globally distributed multi-region, multi-az, fault tolerant, hugely scalable things that rarely get used. By “rarely” I mean requests per hour or minute, not second.

The sum total CPU utilization would be negligible. And if I ran instances across the 30+ AZs I’d be broke.

The service based approach (aka event driven) has some real magic at the low end of usage where experimentation and innovation happens.