It's a little curious that reviewers are focusing on the 12900k/12600k when the 12700k looks to be an excellent middle ground, and quite a strong competitor to the 5900x. It's currently in stock in the US at NewEgg for $ 449 and BestBuy for $419. That said, the 5900x has dropped substantially (now only $499 at MicroCenter). I expect that to drop even further. However... it seems the biggest factor holding back Intel chips is the increased cost associated with the new platform, i.e. DDR5/PCI5 mobos and RAM, which Intel can't control. The total lack of PCI5 GPUs/SSDs will also cause people to hold off a bit.
Putting aside the details, I am happy to see competition in the CPU sphere again. The last time things were this exciting was in the 90s. Now if only GPUs became exciting again... (or atleast available at reasonable prices)