The flaw in the logic is that somehow Medium Format Digital companies will cease their development, lie down, and cease moving forward while 'other' 35mm digital companies (Nikon, Canon, Sony, etc) will continue at a wicked pace.
Technology will continue to move forward as it has...forever. In two years there will probably be 35mm-equivalent digital cameras that can produce incredible images (compared to today). And there will probably be bigger sensors (medium format or larger) that produce ever more incredible images than those And then there will be all the other newer formats, cross-platforms (Red, etc).
Amazing, this thing called progress...yawn. To assume that it only applies to Nikon is a little bold, don't you think?
I'm curious however, how do you detach the digital sensor from that new-fangled D3x and attach it to your Horseman? I just wish Nikon knew how to innovate.