However the main reason I would upgrade is to run LLMs locally and RAM prices are making this a no-go. One day if RAM comes down to earth I'll upgrade. If not I'll stick to this old machine for a long time.
I mean, local LLMs already are really good if you own Nvidia Cards, not sure what you are waiting for. 2x3090 will blow any current Mac out of the water in tok/sec
I'm not sure I'd consider a gaming PC 'regular consumer' hardware especially with today's prices. But yeah, it's definitely doable.