I have been 'again' working on thinning my stash. I know it will out live me and will then be donated to my quilt guild for charity quilts. I do my best not to add to it and cleaned it and refolded every piece not to long ago, then I thinned again. My scraps are piling up to become as many as the different pieces of yardage I have here too. If I thought I would be able to make all this up into quilts I would keep growing my stash. I say go for building as long as you might put even a piece of it into a quilt. Scraps are great.