Not only are they cheap, but Mac minis are ubiquitous. Almost every major city has them instock at an Apple Store or other retailer, so it can be replaced quickly anywhere, unlike any pc vendor

I am a huge M1 fan but that statement is almost true, but not quite there yet. I have experimented with a number of prebuilt machines with AMD Ryzen 3600X/3700X, Intel i7-10700, and Apple M1. Those (esp 3700X) are often slightly ahead of M1 (esp in Rosetta) usually at slightly cheaper prices [often discounted too] compared to the base model Mac mini, admittedly at a much higher power consumption, noise, physical size. The delta increases quickly if you have to pay $200 more for only 8GB RAM (which is the max and sometimes the real bottleneck) and overpriced SSD. If you need Rosetta, you are still probably better off with a mid-range Ryzen PC, assuming you're not married to macOS.

I agree that it is at least super competitive on pricing with comparable compact HP/Dell/Lenovo 8-core desktops. This was surely not true before M1 (I'd say on the order of 2x improvement in mini price-performance).

I suspect this will remain true for a at least a little bit more since Ryzen 5xxx are beasts too, and once supply-demand gets more balanced, machine prices will likely come down at or slightly below Mac mini M1.

On the laptop side, however, M1 is glorious and way cheaper than performance-matching alternatives.

As you say, you're comparing a far higher TDP chip here (Ryzen 3600X/3700X). I don't think those can realistically fit into the Mac Mini's form factor, right? Surely we should be comparing the M1 to the "U" series Ryzen chips?

I was comparing M1 to higher TDP chips, yes. If you take TDP into account M1 wins hands down, of course (unless your workload requires more than 16GB RAM). The context of this post is specifically the price-sensitive customer, not a TDP/space-focused one (compare to this[1] for example, once you upgrade RAM and SSD, and install a decent cooler). You also get better I/O in the PC world.

[1] https://www.officedepot.com/a/products/7814504/HP-Pavilion-T...

Audio folks tend to be fairly sensitive to all of size/noise/heat - this sort of setup is going to end up slotted into a rack of audio equipment, after all.

macOS/CoreAudio alone probably justifies Mac mini before performance comes into play at all. To say Mac mini is cheaper than alternatives matching in CPU performance is however still incorrect, though dangerously close. That’s all.

Form factor is most important. After that, price. Then third is probably the cooling situation, though we can install some extra fans if needed. Better I/O doesn't really matter here as we only need 2-3 USB ports, Ethernet, and display.