Mod-o-philia. It's a form of GAS. ? In extreme cases (me), you end up having guitars with 49 switch combinations or Magnetic, piezo and Hex pickups in one.
BTW - You'd be best served by a pair (or three) of Duncan P-Rails (P90, single-coil and humbucker in one). Not made anymore, but look up the DiMarzio Multibucker (a FastTrack and a Chopper in a humbucker casing) too.