The amount of people it takes to maintain a server rack is minimal and low cost labor. Most of the money is spent on hardware and paying people to right software for that hardware.

Writing that software is becoming automated and it’s not hard to imagine that buying will as well. So you’re left with the equivalent of a plumber running your data center based on what automated systems flag as issues and other automated systems explain you the troubleshooting to go do. There might be a specialist they fly in for an insane rate (in the shorter term) if none of that works but we’re talking about a drastic reduction in workforce needed, and this is for the data center maintenance which not many companies have anymore since the cloud migration