Unless X3D brings 30%+ performance that's simply not going to happen.
That's 7950X3D / 9950X3D price and one can simply enable prefer cache in the BIOS to get within 1-2% of the single CCD chip.
The price for the 7800X3D has temporarily spiked to around $500 (currently sitting at 473 on amazon), that's not what the market is willing to pay as on ongoing basis from here on out. The price will likely drop back to where it was previously, $350 - $320.
A huge reason for the 7800X3D's and 5800X3D's popularity is their pricing. Some people seem to be vastly over-estimating what most of the market is willing to pay for an 8-core CPU based on nothing more than surge pricing that represents less than 1% of the product's pricing history.
I have a 7800X3D and $500 would have been a dealbreaker, let lone $600 or $650. That's just nuts. I could have gotten a 7950X3D for $430 on sale. Heck $450 is high for the 8 core X3D part IMO, that price already has the "fastest gaming CPU" tax baked in. I would absolutely buy the 16 core CPU or go Intel if they significantly raise prices without massive performance increases.