I could pick up a Contax "Preview" body/finder around $200 locally; I've already got a number of Contax SLR lenses. I've also got about 14 packs of 665 P/N film, but perhaps it's smarter to shoot that in my Polaroid 190. In short, can anyone think of any good reason why I should buy the Preview? It only gives 24X36mm images on Polaroid pack film, which is a waste of good emulsion space, but it's kind of neat to be able to make Polaroid pictures using all the various Contax lenses. I suspect that I'm just falling prey to GAS. Any thoughts one way or another?