If you have reserved instance style workloads and aws is saving you money, it sounds like your private data centers were just grossly mismanaged or you have a n

If you have reserved instance style workloads and aws is saving you money, it sounds like your private data centers were just grossly mismanaged or you have a negligible compute load. AWS was likely just a way to overhaul inefficiencies in a legacy IT org. Someone will be able to do the same thing in 5 years moving you from AWS back to self-hosted.