It would depend on what kind of quilts you make. I don't like the 9" because you can't cut 2 - 5" squares. If you use 4 1/2" squares then they might be good. If you like paperpiecing they are good because you have a lot of variety. The layer cakes are good because you can get 4 - 5" squares out of them. The pre-cuts are great for quick projects, like table runners, potholders, etc. Just think about how you use your fabric.