Spending $500 on a single NUC with an SSD and i7, loading it with emulators and hooking it to your LCD would be much more space efficient. But under $40 spawns the impulse buy.
There's a used one in the Amazon warehouse for just $32 shipped. Damaged box but everything else should be OK. I can't see why I *shouldn't* have this other than yet another plastic junk box. But I love them so.