If you are happy with a 50mm at f/1.4 in low light, then very well done. I can't do it with the .58 viewfinder, the already low hit rate at that aperture with an even slightly moving object becomes impossible. But as a camera is just the body, a box loaded with film, and therefore the longer term fiscal decision, it shouldn't be forgotten that people migrate between lenses more than bodies. So the great idea to use wider lenses becomes somewhat tempered when you find that what you really want for a good portrait is a 90mm, unless you want to be a 'one trick pony'. But I'm prejudiced, I'll admit it, I have never been an advocate of photographs where the subject matter looks like a pea on a plate, where sweeping perspective substitutes for revealing content. So I am a anti .58 viewfinder bigot, but only after experiencing all those available from Leica. I would say the same about the .85 viewfinder, but coming from the other direction of course

Steve