Acquisition disorder does not seem to exist within the cartridge shaver market. I have heard from many straight shavers with ten, fifteen or more razors and I have heard from some double edge shavers with one hundred or so razors. I have never heard of any one with a Mach or Fusion saying "got to get more of these things." Also, have you noticed that when msot people catch acquistion disorder it seems to surround the after shaves and soaps. I have yet to hear someone brag about there latest haul of fifty or more blades. Aside from the recent talk of the Welshi razors I have yet to hear people talk much of razor RAD. This is really the only thy I seem to come up with.