I do my quilts all by machine too. I only do anything my hand if is going to be a heirloom and not be used. If my grandchildren are going to dragging a quilt I made them around on the floor I know a machine stitched binding is going to stay put before a hand stitched one will. And the lady shouldn't have been rude to you because you do something different than she thinks it should be done. Who made her judge and jury?