You can get better built PC cases, but you have to pay a premium for them
I would love to be able to use my old PowerMac G5 case but I'd have to do surgery on it. I'm sure that this case will be fine for now. I may look into better cases in the future. The thing is I bought the Dell XPS Studio 435mt for $575 in 2008 and got a system that is still very usable today with a rock solid case. My guess is that these premium cases cost $300 or more, more than half the price of a great case 12 years ago.
The current approach is to do everything on the Windows systems using the Cloud while using my MacBook Pro where I have local work, backed up to Time Machine (x2) of course. I don't think that there's anything like Time Machine for Windows.