> Its weird to have companies say they're moving from Mainframes to the Cloud.
Ever work for a company with their own datacenters that were NOT cutting edge? The work to provision resources can be so painful that it severely inhibits prototyping. Being able to spin up resources in seconds with some API calls is very valuable.
No one says you can't have both. An on-prem data center for reliable workloads and cloud to try out new stuff and products or to get short-term capacity. But in the end, 95%+ of servers in your data center will run 24/7 and for years on the same software. No need to outsource that.
Ever work for a company with their own datacenters that were NOT cutting edge? The work to provision resources can be so painful that it severely inhibits prototyping. Being able to spin up resources in seconds with some API calls is very valuable.