Not only that, but the people who claim they can build an equivalent PC for less often hit this price point by putting an absolute garbage CPU in it that would take 5x longer to render video or compile code. Considering how the price of the Xeon chip alone is more than that already.
You can't build an "equivalent" PC for less if "equivalent" has to mean 7 high-bandwidth PCIe slots (the 8th is a 4x, half-width slot pre-fitted with an I/O card containing things like USB ports that most PCs include on the main board), capacity for 1.5TB of RAM, hot-and-cold-running Thunderbolt etc. oh, and
available today. Which the Mac Pro
isn't and we still have no idea of the price of MP system that can out-perform an i9 or Ryzen.
I've already pointed out that
currently available Xeon PCs need dual processor configs (...which, incidentally, can support twice as many cores and/or
more GPUs as the Mac Pro) and linked to at least one new motherboard that can support the new Xeon-W and hence offers 7 slots + 1.5TB RAM. Maybe that hasn't shown up on the HP system configurator yet - but the technology isn't an Apple exclusive but if it
hasn't shown up in six months time that would probably mean that
nobody needs a general-purpose single-CPU machine with that level of expandability.
If the prime requirement is to render/compile at speed,
here is a system that will out-perform the entry level Mac Pro. (Spoiler: its the iMac Pro) - since it comes with a $1200-value display you can probably afford a 12- or 14-core CPU if the entry level (in case a better GPU and more SSD than the MP doesn't quite hit the mark). Of course, the reason that we all don't just shut up and buy iMac Pros is that wanting a "modular" system
isn't just about getting the fastest possible CPU, and that
some PCIe slots and RAM expansion would be good, but more isn't necessarily better.
What you can do - even with currently available hardware - is build a system (or, if you are Too Pro For DIY, go to an OEM who will build it to spec and sell you a support plan) that
better meets your needs than the MP (or iMP) - which may mean cheaper (outside the Mac bubble, AMD processors are seriously competing with the low-end Xeon and high-end i9 for multi-core workflows, and are certainly not 'garbage'), or may mean better (maybe you want true rack mount with all the redundant PSU/lights out trimmings, maybe you want a scalable Xeon system, 10 GPUs, or a silent water-cooled system...)
In fact, I am starting to wonder whether a lot of the ‘demand’ for a new Mac Pro is actually coming from PC trolls who knew Apple’s solution would cost a small fortune just so they could step in and criticise.
Thanks for drawing a line under any attempt at rational argument by invoking the MacRumors equivalent of Godwin's law. "Troll" does not mean "anybody who disagrees with you".