I am fond of pieced backs. It's like getting two quilts while only having to quilt one! I do my own quilting on my DSM. I do buy the wide backs sometimes and have been known to use quality cotton sheets for backs if the fabric is perfect. I love the prints in the old vintage sheets from the days when they were all 100% cotton and people used to iron them (my grandma always did). I love browsing thrift shops for them but always check them carefully for holes/wear/stains and wash them two or three times b4 using them. (I took a class with Bonnie Hunter and was tickled when she told us she buys vintage clothing and sheets at thrift shops and estate sales to use in her quilts. I had begun to think I might be just a little weird! Well, maybe I am, but if she can do it, I can too!)