IBM Model M rebuild

I always wondered with the fame of the IBM Model M among enthusiast users why no manufacturer did a rebuild of those?!
has the manufacturing/Buckling Spring become to expensive?
not enough ROI?
legal issues with patents?

Clearly the recent past has proven that there is a market for high quality mechanical keyboards out there and that users are willing to pay premium so i stumbled upon this here:
https://www.getdigital.eu/Buckling-Spring-Keyboard-Classic-Design.html

(not trying to advertise for this shop here, just stumbled upon this and thought some of you might be interested that this exists)

They are expensive like you said, but available.
I imagine the feel is similar to the model M.