@paul_ipv6 @hugh Counterpoint: where is your B site? What happens when your office catches fire, or floods, or has a power outage? What's your BCP? What does your HVAC look like? How do you handle offsite backups? How much are you willing to spend to reproduce all this infrastructure that the cloud provides as part of its cost?
I have no problem developing software for a bespoke task in-house, but "run a linux server" is about as far from a bespoke task as you can get, and a lot of the "just get a wire shelf of repurposed mid-towers with no thought for the morrow" is simply gambling with everyone's livelihood.