Quality and size of negative are simply a choice of the photographer but intrinsically they are meaningless. I have stopped worrying about such trivia a long time ago. I shoot 35mm, medium format, and now a Leica Monochrom as well. I worry about content and finding moments, light, things worth photographing, not whether a 4x5 or 8x10 negative would give me an edge in any respect. It doesn't. Viewers don't care, buyers don't care. Mostly, I don't. We can all use any of the tools we chose to use, but at the end of the day, it is the print of an interesting image that matters, regardless of the medium used. As an example, I just paid $3,000 for these prints, taken by Vivian in 1955 with her Contax and Tri-X, on the 3rd avenue El train and during the dismantling. Could not have been taken with a 4x5, 8x10 (fleeting moments, not posed shots), it would not make a difference, and no one really cares. http://www.thelionheartgallery.com/A...694&NewID=3488, http://www.thelionheartgallery.com/A...694&NewID=3495