I mean maybe gaming is not the end goal for those types of people. Some people just like setting up and maintaining server hardware. One of my favorite things was maintaining a Team fortress classic dedicated server. It's fun watching others have fun.
I want this. Just build my main personal rig and a couple dedicated game servers into a single box. That would be rad as fuck. Especially if the box itself was climate controlled. Fuck, man... Maybe I'd just live in the box.
I have a smaller cabinet and thought it would be cool to put my gaming machine in a Sliger case and keep the cabinet next to my desk until the next time I had to actually use my laptop at the cabinet. Sounds like a jet compared to my gaming rig, so I decided it can continue to live in the basement. I'll get a KVM for the servers or something
I have a setup like that and don't even play call of duty, I mostly just run my own streaming service for friends and family plus a cloud gaming VM for when I play while I poop