Ted, It would be interesting to know why you're so defensive about the M8, but here's your answer: I want a camera that doesn't need an IR filter to handle what, evidently, is less than a universal problem, but still is a problem that can screw up the shot you worked hard to get and can't go back and shoot again. I want a camera that's well sealed so I can shoot in the rain -- not driving rain, but, let's say, the kind of rain that was falling when Cartier-Bresson made that shot of Giacometti crossing the street. I want a camera with a very quiet shutter. I want a camera that doesn't have screws falling out, or problems with banding, or green blobs. I'd also like a camera that has very low noise at ISO 1600. In other words, I'd like a digital camera that's pretty much like my good old M4, but with the kind of improvements I'd expect 40 years of development to bring. As far as price is concerned, I don't think five grand is too much to pay for that kind of camera, but I think it's way too much to pay for a camera in beta test.
Yes, the R-D1 leaves something to be desired, but it pretty much produces results that are consonant with its price.