the rational in one’s mind is similar to buying expensive supercar but no driving it daily.

owning a few GPUs is a lot cheaper than supercars.

I dunno. I bought the Spark in January and it has led indirectly to paid work.

I don't use it for local inference so much. I use it to learn.

I also use it as my daily driving Aarch64 development system.

Aside it's also very cool what else can be done with unified GPU memory, once you realize you have it...