TL;DR - My computer is using an extremely old CPU and motherboard combo (an i7-3770k) that, while is still very much usable, has started to hinder my usual workflow. Video saving, program compilation and loading stuff just takes too much time now. Compiling MAME takes me almost four hours, for instance.
I didn't want to resort to this, but... I'm offering my personally bought, single owner, CIB copies of Final Fantasy III and Final Fight in exchange for a much newer CPU / Motherboard / RAM combo. My video card is about four years old, but still works pretty well since most of my games aren't that new. The CPU (and not being able to use M2 SSDs so I'm limited to more expensive SSD upgrades) is the big problem.
So if you have a previous PC build that you're not using anymore and want to exchange it for something else... well.. here I am. I'll post pictures as soon as I can fish out the games from my storage upstairs.