I can tell you this much - I've got a 1999 with over 105k miles on it. My fronts have been turned once, and both front and rear are about due for replacement due to normal wear (except for the one rear rotor which I've trashed, but we won't get into that!). Even today they don't look anything like those last couple of pictures. There is rusting on the edges, but the surfaces where the pads make contact are reflective and shiny. There was either a BIG difference between manufacturers, or some set of conditions allowed your rotors to deteriorate unusually fast. Did your VX sit for a long period of time? Perhaps at the dealership before it was sold? I know some brand new 2001 models sat well into 2003. Perhaps allowing the rust to build up weakened them and allowed them to break down?