The primary writer over at Luminous Landscape was a vocal Sony guy for a long time. He loved the A900. Only recently did the lack of video cause him to start leaving it in the closet.
Aside from that, I agree that the majority of pro photogs rely on Cankon. That should be of no comfort to them, though. Legacy is a powerful thing when it comes to keeping people in a system. But there was a time when Leica, Zeiss, Voigtlander, Olympus, and Contax were all used dominantly by pros. They are all shadows of their former selves.