If you are becoming a quilt hoarder and each quilt you make just gets added to your hoard, try making them slower by making each one from a more complicated pattern. Not only will you grow in your ability as a quilter, your quilts should become more beautiful and intricate. Perhaps with time you will be willing to part with the older, simplier quilts and keep the more complicated patterns. At any rate, you won't be making them as fast and your hoard won't grow as rapidly. Or make a rule that you'll only make one quilt per pattern. One DP9, one Yellow Brick Road, etc. Make it your goal to grow as a quilter while you are enjoying a new aspect of quilting.