I fully expect they will last me the rest of my life. That’s very expensive, you may say - but consider how many pairs of $150 boots I would have gone through in that time.
I also have several pairs of high quality English dress shoes that are decades old. They look better than ever. They don’t crack and the stitching doesn’t fall apart. The biggest problem is finding a cobbler who can do a full high quality resole without damaging the uppers. They are all rapidly dying off.
Modern cloth and rubber shoes don’t last. The rubber deteriorates, the stitching and glues fail, and the cloth frays. They can’t be repaired. It’s not worth trying to make long-lasting, custom shoes from materials like that. Thus, the throwaway culture.