I think of my stash in terms of a color wheel and some of every color so that I can choose a color scheme and have things to use as coordinates and complements for main fabrics. Mauve is just another color to be used. The marketeers do all they can to steer you toward combinations that are currently popular by their decree. But, for each person, you need a selection. So, keep your mauve and use it judiciously because it is a tool to a beautiful quilt.