If you have read any of my other posts to this site, I am a big advocate of stretching outside your comfort zone. Most of the time this involves trying out new film stocks (which I still and always will encourage). This can also be achieved by trying different cameras or different formats. This option usually leads to a severe case of G.A.S., Gear Acquisition Syndrome. I, like most photographers, am a victim of G.A.S. But the trouble comes when you have so much to choose from that you have a hard time making a decision.