I have sellers remorse for getting rid of a 85mm Nikkor f/2 LTM lens (with m-adapter) when I shuffled things around. I got rid of a Hexar RF (on which I used to attach that lens) and the lens went soon thereafter. I liked it too, quite a bit. Nice contrast close and wide, good enough for flash, and it let in LOTS of light. I'm looking for another, and someday, I'll have one, though if I can find a GOOD J-9 LTM that focuses well, I may go that route.
With the rumor that CV may make Contax and Nikon to LTM (or better, M) mount, I would happily go that route and forget buying any more Leica lenses.
Again, thanks.