I have only been quilting for about 2 yrs but I mostly buy fabric for the specific quilt I am doing. However, I usually wind up with leftover's so I guess I am building a stash. Now and then I see a fabric that speaks to me, so I will usually buy a yard of it in anticipation of using it for a future project. Right now every piece of fabric I have fits nicely in a plastic storage bin, with room to spare.