"the new AMD Ryzen Threadripper 7000 Series and select Ryzen Threadripper PRO 7000 WX-Series processors will be available from DIY retailers starting on November 21st"
So this time it appears that it will be a real product launch for everyone, not just for Lenovo or the like.
Multiple 7950X systems will always be faster than any of these Threadrippers for a given amount of money, but 7950X is limited to only 64 GB of fast memory (populating two sockets per channel slows a lot the memory), so anyone who needs a lot of memory (up to 1 TB) in a single system might want a 7960X (24 cores @ $1500).
The models with more cores have worse performance per dollar, so it is hard to justify their use instead of using multiple servers, for higher performance at a lower cost.