Just wait for M3 Ultra which in past generations is literally just 2 Maxs. Imagine 256 of GB unified RAM (oh and I guess the 32-core CPU and 80-core GPU, though those aren't as impressive).
Really would love to know how much that is going to cost
The m2 Mac Studio right now at $2400 for the 64gb model is cheaper than most anything new if you want 64gb unified pool of gpu memory other than the $2000 Nvidia 64gb Jetson AGX Orin which is much slower.
A threadripper based system is physically freaking large, and loud, and incredibly vram constrained. It of course is going to absolutely destroy the Mac Studio in most situations because it's better than the Mac Studio in most metrics, but honestly I'm very excited by the prospect of future Macs with gobs of memory, although I'm concerned at how Apple isn't generationally improving memory bandwidth.