Generally I think modular is better but I think AIO makes sense for a fair share of cases. My parents have a Mac mini and monitor but I want to get them an iMac so they don’t ever have to worry about making sure what’s plugged into what (eg. when they move or rearrange furniture). Plus it’s cleaner and takes up less space which they have very little of.Somewhat controversial, perhaps. But:
The iMac is a broken concept.
A Studio Display + a Mac mini is a much better and much more sustainable setup.
It’s also good for businesses that want to present a sleek image.
I do wish it had target display though.