The M3 was innovative and pros used it, Nikon and Canon were cut throat competitors, all three eat Zeiss' lunch.
The Barnack Leica from pre WWI was innovative and Zeiss were a cut throat competitor, Leitz held them at bay.
The M8 may sell better then the M4-2 and keep leica afloat, it neither seem to be the M3 or Barnack, nor it is an albatross like the M5 was.
Leica are hanging on by finger nails commercially, not helped by real rnge finder competition from CV.
If they go under then after a while the collectors will push up the prices, e.g. Reid prices are silly as a shooter I bought a reid lens '70 as it was given away as the manufacture shut down, it was cheaper than a CLA on my summar, should a kept it.
Noel