[PaulDavisThe1st]

I need to build my software for macOS. On my Ryzen Threadripper running Linux, I can run a faster, more powerful KVM/QEMU version of Mojave than I can buy from Apple, while still having cores and RAM left for Linux.

I could afford to buy hardware from Apple, but why would I when the cost/performance ratio for an embarrasingly parallel compute task like compiling is so much worse?

[george_perez]

Like the previous person said, mainly stability and support. There's no doubt that macOS can run much faster in non-Apple hardware given certain parameters, but if you want support and solid stability you would probably go with Mac hardware.