When working, all my heels had leather soles. I was often droppng 2-3 pairs of shoes off at the shoe repair shop to have either the tips of the heels and/or the soles replaced. Additionally, the huge comfy chair behind my office desk ruined the backs of my leather heels . . . and the shoe repairman was always straightening and reglueing the leather. Plus, he polished my shoes far better than we did at home.
On the other hand, my husband wore dress shoes daily which also had leather soles. My husband believed shoes should be polished after each wearing. He had many of the same style of shoes (most black) and would drop several pair off at a time. Periodically, he would have them reheeled or resoled so keep his walk even. Confident most of the business done by shoe repair shops continues to be for businessmen and women or those wearing boots. People who still insist on quality leather footwear.
I have also had leather goods (i.e. suede jacket, leather coat) worked on by the same shoe store. We are in a major college and University City; I imagine the students patronize the shoe shops with their leather purses also. Sadly, too many shoes are made with man-made fabrics and rubber soles. Hope they are able to stay in business for a very long time; it's an amazing trade.
Money screams; wealth whispers.