If you are a sound user, you may want to read this thread before considering a new Mac.
Here is some information about the current situation with Apple's Mac Mini 2018 and 10.14.2.
Andreaas Y writes:
My work machine is a late MacBook Pro Retina that has a USB headphone amplifier and a USB microphone attached. MacOS 10.14.3 broke sound in such a way that only one of these will work -If I send sound on the headphone amplifier, then the microphone turns off. I must currently use the internal microphone. I have a bug report with Apple.
Of course, serious work is being done on an AMD EPYC machine running Linux that I recently built.
MPG: It's sad that Apple doesn't seem to build a machine (and software) for years now that is viable for pro apps.