Having been a clothing and home dec sewer all my life before starting quilting a couple years ago, I made many many many yards of bias binding. You can get about 9 yards (roughly) of bias binding from a yard of 44" fabric. It makes a beautiful rounded corner which I love for some quilts. I made a silk quilt with a silk velvet backing and made bias of the silk velvet because mitering corners on bulky velvet would be very difficult, I rounded the corners and hand stitched the binding down; it came out beautifully. I had never done straight grain binding till I started quilting; still prefer the bias. You will find as many opinions as there are techniques.