[mst]

That seems to be a widespread attitude among "true" Leica people, yes. On the other hand, there is a lot of interesting and quite affordable glass available with M-mount, and if you want to use it on a digital rangefinder camera, there aren't that many choices...

MS has produced quite a few very thin lenses in the past (even though I remember the prices being quite a bit lower many years ago). Personally I can't imagine using something like this being much fun. I would probably have a hard time adjusting my muscle memory and would likely always grep the air in front of the lens when trying to focus.