i use sheets ALL the time, the cost for that sheet is much more affordable for me then also buying more backing fabric. i try to choose higher thread count fabric that will not pill i generally find this at walmart. I agree with the 1 statement made above my quilts r not of high quality, i do it for fun, creativity outlet, gifts, im not the best far from it. if someone wanted me to make them 1 & if they wanted professinal results they shouldnt look to me in the 1st place. as i do understand what ur saying. there r several reasons ppl quilt & several reasons for which 1 chooses the fabrics they do, final cost is a good factor. it is each of our creations & whatever 1 chooses to finish or start a quilt is up to them & in now way makes them a better or worse seamtress. quilting to me is about creativity & outlet & like any other medium 1 should not be told thier is a right & wrong way to create. HOWEVER with that being said: If 1 is selling at perfection market prices then the purchaser should be getting ALL they are paying for which would require supirior start products. i use sheets a good bit of the time & have never been dissapointed with the results. i have used fabric, the piecing & cost has left me bewildered. blessings