I used the hair clips for a long time and didn't want to spend the money on the Wonder clips. Now I put myself on a fabric moratorium and have purchased the notions I have always dreamed of having....YEP, the Wonder clips and I won't go back to the bulky hair clips. Like someone else mentioned, you can sew right up to the clips as they lay nice and flat. They are worth the money spent. I don't have as good of luck clipping and sewing the binding on in short segments at a time; I like to clip the entire quilt first. To each his own.