I was just checking out a few cameras on ebay and I usually check the Mamiya RB67 (all versions) listings. Today I entered Mamiya RB67 Pro S and the only thing that came up were three listings for light shielding kits. NO cameras or backs or anything related to gear. I then entered just Mamiya RB67 and got that plus filters and shutter releases. Again no cameras. I have noticed that there have been less and less cameras for sale over the last year, but this is strange. Are people that wanted a RB now hanging on to them or is there little demand for them. I realize this could change tomorrow, but it is the first time that I have not seen one or two cameras for sale. I'm not looking for a camera, but I'm always interested to see what they are going for and what accessories are up for auction.