One of the dangers of looking at your negatives too closely is you will find all sorts of detail that does not show up in the print. Then you will try forever to get a print that looks as good as the negative. The range of a properly exposed and processed negative is almost always more then any scanner or wet print can show.
Well, if I see a bad scan, I need to know if the camera did a poor job making the negative or the scanner just whiffed. Right now I have no way to tell.