> Even with the discounts, savings plans, multi-year commit discounts, etc., the cloud costs are absolutely absurd if you are running stable applications where you understand the future growth, use, and demand.
This is true, but it doesn't preclude use of the cloud.
The core of the cost issue is, in my view, that software is still designed to run in a datacenter: always on, all code in a single process (yes, this includes microservices), expected to never stop mid-execution. That made sense when you owned the hardware and needed to fully utilize it for the duration of its life. This prevents the best cost-saving measure in the cloud: turning it all off.
People can complain all they want about how the cloud providers operate, but there are ways to utilize cloud infrastructure without breaking the bank. Software development practices have to change, and in the meantime the cloud platform providers are going to make a pile of money as companies shift legacy software to the cloud without the needed re-architecture. We need frameworks and other technologies that, similar to the abstractions we now have for memory management, multi-threading, asynchronous I/O, etc. relieve the burden of reasoning around distributed, disjoint processes from the developer. Then we can finally realize the ideal of "only pay for what you need".