I had a NUC for a long time, I liked it because it fit in my bike’s under seat bag, or in the bigger pockets of my cargo pants. More portable than a laptop, I didn’t even need a backpack—assuming I was going somewhere with a keyboard and monitor (or I could ssh from my cellphone, with a fold out keyboard, but that is a pretty cramped experience).

Which is just to say it is a different niche than any desktop.