Separate to discussions between @kionon and @The_Hawk about Mac Pro’s, I have been offered one up locally, and I am not sure of its potential longevity, usefulness for me and what is a fair price.
I am not widely familiar with capabilities in terms of OS limitations, how long they will continue to be updatable, GPU compatibility, etc.
I would not be using this for that much heavy lifting. Mostly graphic and web design, occasional video editing/encoding, and possible using bootcamp to tinker, play the odd game (the latter replacing a PC which is a bit grumpy and likes to not work semi-regularly).
Any thoughts on whether a single core would suffice, and how prices are for a CPU upgrade at some point (if worth it).
Appreciate any suggestions-recommendations.