What moving parts do competitors have to be less mechanically reliable?
In fact, a NUC or used laptop would be even more reliable since you can replace NVME storage and RAM sticks. If your RPI ram goes bad you're shit out of luck.
>RPi will still have lower power consumption and is far more compact.
Not that big of on an issue in most home user cases as a home server, emulator or PC replacement. For industrial users where space, power usage and heat is limited, definitely.
>I'm in the market to replace my aging Intel NUCs, but RPi is still cheaper.
Cheaper if you ignore much lower performance and versatility vs a X86_X64 NUC as a home server.