Hi,
I received my M9 a few days ago. Tried it as soon as possible with my really old Leica lenses (35 Summicron from 1960, 50 Summicron from 1968, 135 Tele Elmarit from 1973 and a tiny 21 mm Voigtlander). One of the first settings that I made was to turn off the display -- it serves no photographic purpose other than to check the histogram from time to time, so while it would be nice to have a display similar to that of my 5D2 it really is a non-issue. I also purchased a Thumbs Up and a shutter button "Boop" -- both are really mandatory in order to use the camera. I did wait for a future M9 when the M8 came out but I am to old to wait for an M10. The M9 is expensive, it supposedly has flaws -- lots of complaints, real or imagined, on the Leica forum -- it is not a dSLR, does not have LiveView, ISO 1250 is probably the limit for low light, and so on but it feels natural in the hand. Not sure why, but with the M9 I seem to be more frugal with the number of shots I make, almost as if I thought that I had film in the camera when every frame cost. But, before sinking the $$$$ make sure that a rangefinder is what you want. I don't know of a rental place in Canada, but maybe rentals are available in some other country.
Jean-Michel