I'm currently shooting a (Hassy) 60mm and have been thinking of adding an 80mm for God knows why. My original thought was getting a 100mm and making it a TWO lens kit, but the 80 for some reason keeps returning to mind, probably because I have one for another camera body that I prefer not to shoot, and I find the lens somewhat appealing. So my question is, would it be a mistake to pick one up if I'm going to buy the 100mm anyways.