Higher quality fabric 100% makes a difference, everything from the quality of the threads to the density of the weave will have an impact. Higher quality clothes are often easier to alter to your body shape which can cut down on wear. Being able to alter easily also helps accommodate your body changing shape, which is a common reason people get rid of clothes. Then again no piece of clothing will last forever and keeping up with mending small holes as they form is necessary to stop them from becoming big holes.