The reason some of the VX's are for sale are because of people like me and my situation. I had my Ironman for quite some time, my Dad really wanted it so I made a deal with him... If he could find a Proton for me and buy it, we would trade. And that is exactly what we did. He gave me the money to purchase my beloved Proton (which is more loved and cared for than it ever could have imagined ) which is used for what it is meant to do...well eventually when Moab comes around..., and my gorgeous Ironman went to my Dad who treats the Ironman like a queen. The Ironman is pretty and polished 24/7. So I guess the answer you are looking for is simply some VX's are sold so more obsessive family members can be added to the VX community and help save this dying breed.