I am (almost) with sitemistic. I owned a RD-1 for about 9 months or so and while it worked really well, I just never got into it. Whenever I wanted to use a digital camera, I just grabbed my 5D and off I went. When i wanted a rangefinder, I would take my Bessa R2a - the RD-1 really saw minimal use. One of the reasons for that was the stupid crop factor. I hate the fact that my lenses are not what they are with film RFs. When the DSLR craze started I waited until a FF DSLR was available - and bought the 5D. No matter what others say, it is a PITA to use crop bodies. All of a sudden you have to get lenses that are even wider than what you already have. If you want a fast normal lens you have to fork out a lot more money, etc, etc.
So, unless a medium prized digital RF is fullframe, I will pass on it, no matter who makes it and no matter what it costs.