Not really. The average is that high because of the trashcan debacle.
Then they released the last intel mac pro and it was understood updates would be more frequent.
Something happened with the apple silicon transition, and it seems the chip they were working on for the mac pro (allegedly two Mx Ultras stitched together) wasn't feasible for whatever reason, and they released essentially a mac studio with pci ports but no way of using external graphics.
Hence my question.
I agree it's a niche product. Since they released the mac studio, a niche within a niche, really.