> but we've hit a point where even high-end chips from that generation aren't really wide enough for a lot of users; four cores isn't really enough for midrange consumer workloads.

I dispute this - I had an i5-2500K (which is a 4 core, Sandy Bridge processor) that I upgraded about two years. But I didn't upgrade for performance reasons (I was still gaming on it!), but rather because one of my ram sticks had gotten crashy and I wanted to try building a mITX computer instead. It would definitely still be plenty for a lot of use cases. I still have the 2500k and motherboard sitting in a box, just in case someone desperately needs a computer.