When I first started I had the impression that fabric is fabric. Once you have made a few quilts, some with hard stiff fabric that someone gave you because you sew, hen you move on to the better quality fabric, so soft and easy to handle, and you come to the understanding. Some fabrics have so much sizing on them that when you wash them you can never get rid of the wrinkles. Experience will help you understand. I can only compare it to getting your first car. When you are a teenager you don't care, as long as it is a box with wheels. After time you learn to appreciate it better.