At a sewing expo I recently saw a demonstration of Quick Points Rulers. I really wanted to get the 1" scallop rule and had to blink at the prices. Are scallops and prairie points difficult to make without these conveniences? There was another vendor demonstrating a prairie point device made of stainless steel that one could iron on. Once again, worth the price? I hesitate to invest money and storage space in things I don't really need. Thanks for your feedback.