Yes the waiting list is long but that does not say anything about numbers sold. I do not have acess to Leitz digital camera sales numbers, but according to this luminous landscape article:
https://luminous-landscape.com/state-of-the-business-what-we-know-and-what-we-dont/, the Japanese sales of L&M -
mount cameras must be quite small. Luckily for us who appreciate their optics, however, their recent economic performance has been strong.
You ask what i mean; My point about "leica washing-up liquid" for the fashionistas is that the reputation of the company was built on long term service, both mechanically and by the company. I resent that my SL2, the R8&9 cannot be maintained by them and recall with pleasure my visit to the HauserTorwerk in Wetzlar when my then IIIC was modified. Nevertheless, the company could not have survived by continuing to maintain such facilities.
As to the M6, I prefer the viewfinder of the M3 where with both eyes open, the frame is clearly projected in space. Less easy to see ilike that with the M6.
p.