One yard lengths is what composes a big part of my stash. Or maybe I should say that's the size I buy and the leftovers are my stash. When trying to get just the right fabric to go with a particular focus fabric I may end up getting two or three (thinking they are ok) and then see another that is truly exactly right. And a few months later those first ones are just what's needed for something else (and may no longer be available in my local shop).
So welcome to stash building! It will be perfect for some project in the future.