I have a Prusa MK2 clone that I recently revived with Klipper firmware, a cheapo Kingroon MK3S Pro that I bought to tweak a bit, and have been looking at getting a Bambu Labs or building a Voron - and either of those seems like a better investment than the MK4 if you can build and tweak the printer yourself.

But the key thing is that the Bambu (and other upcoming Core XY printers) are aimed at the non-modding market and seem to be a much better deal overall, so I'm not sure what Prusa is going for here other than leveraging brand traction...