Comment by Spooky23

Exactly. I run a large enterprise service in a single datacenter with 5 years of 100% uptime. Our design goal is 99.97% measured monthly.

We have that because we have complete control end to end. We made an engineering decision not to have geo-redundancy because many of the dependent services aren’t available that way either.

Because of the compute requirements, running that service in AWS or GCP would cost about 80% more, inclusive of all costs (equipment, labor, utilities, etc)