Use your imagination and think of your cherished pieces of fabric as having lives and personalities. Would they be happier stuck forever in an unused stash out of sight, wasting away and bored? Or would they start getting excited when they realize they get to move into a beautiful quilt and placed where they can be part of the decor and gain admiration? Look at things from the fabrics' perspective, however weird that may be...
Find ways to use them and make them happy!