Yeah, I get it.
But what if most motherboards were just expected to have 2 slots, you know?
Of course I won't be switching to Threadripper just for getting 2 CPUs on a single motherboard and have kept the other CPU lying around, thinking of using it for keeping all the storage HDDs, and maybe offloading all re-encoding stuff onto it.

For compilation though, I'm fine with just using my main PC, although I did look into distributed computing options, specially when using my laptop, I think I'm fine for now.

It's more like a fleeting though that came to me a few times, when I felt like playing a game while reencoding, but was unable to properly set the CPU usage for the encoders in ffmpeg.