I too shoot only Nikon RF for film. I'm not sure my feelings about it are as strong as yours. For example, I tend to look through Canon and Leica and Kiev threads because these people are often real photographers discussing photography and asthetic situations. Because Nikons are so expensive and collectible (or, more properly, perceived to that way) hardly any one who owns one or two or three seems to use them much.
Glass case trophies. A shame.
I get puzzled by all the Leica terms that get thrown around. Cron and Lux and so forth. They're fairly meaningless to me. Nikon hasn't got the variety. It made one lens per focal-length/aperature combo, and made it so well but for so short a time that there are few meaningful variations from the point of view of a user. I do somethings agitate the Leica forum, as when they're discussing one of their "king of bokeh" lenses and I go ahead and toss in an image from a Nikkor.
I'm very much a user-collector and shot with the cameras professionally for several years and semi-professionally up to several months ago when I left newspapering. I'm now in public relations, so there's a chance I'll use them again for professionally.
I do use also use a point-and-shoot Canon Powershot G1 (which, with its screen folded away, sort of works like a rangefinder with a center focus are but really crummy framing). I also use some non-Nikon lenses -- a Zeiss Biogon 21mm f/4.5; a newly acquired CV 25/f4; an Orion 28/f6. I also just received a Jupiter 35mm f/2.8 in trade and have liked previous versions of it.
When I started looking into Nikon RFs in the last 1980s, it was purely from the point of view of a working photojournalist who had been bitten by the rangefinder bug. I didn't know much at all about Leicas. I bought a Soviet-era Kiev, which gave me a platform for a few Nikkor lenses, and they were of such a quality that I could use them for daily newspaper assignments despite their age, so I started doing this. It was also an odd time when collectors were suddenly starting to drive the prices way up fast. In the course of a year, Nikon SPs went from reasonable -- in the $500 range -- to over $1,500. So mine weren't overpriced compared to Leicas. And the lenses were very good buys for the quality.