A lot of areas of expertise do go away though. I don't need to worry about the electrical features of the building where I'm hosting servers. No worries about w

A lot of areas of expertise do go away though. I don't need to worry about the electrical features of the building where I'm hosting servers. No worries about whether I set my automated backups for the prod DB right because RDS makes it trivial. No worries about physical security and having to be anal about site access management or physical segregation between hardware and users. And so on and so forth. Physical server management is in general a liability and cost center.