I am right now contemplating adding a 3rd system, a Fuji X camera(either the M1 or A1). But, am I crazy to do so? Cash isn't that key of an issue as price is pretty fair on either X model I am looking at(at least in the used market). I can almost make a use case for adding a third camera, but then I am already kind of the odd one taking my GF3 with me almost everywhere I go. So, my question here(& I am sure it may have been asked before), but how many of you have more than 2 different systems(or 1in & larger sensor) cameras and use them, even if its once every few months?