Every now and then I get huge yearnings to buy a new camera. I already have a Mamiya RZ and a Nikon. I am sorely tempted by the greater MF spontaneity offered by the Mamiya 7ll, and am also tempted by a Leica. (I have to confess a desire for a Hasselblad also comes into the equation but I realise this is the wrong forum for that). I take mostly portraits and still lifes. Am I just being greedy, pure and simple, and should I continue to work with what I've got or would my life change if I had one of the above cameras? (including the Hasselblad if you're interested).