Vault requires too much of our IT guy's time (at least in regards to upgrading). My company allows its engineers to use Cadkey, AutoCAD, Pro/E, Solid Edge, Catia, Solid Works, or Inventor for design work and Inventor is the only one using a file management system. All the others are getting along quite well without one and I'm feeling like the Inventor primadonna, requiring more time than anyone else.