Custom made leather boots. Expensive at around 900 Euros for the pair, but I've had them for 8 years now and they look new. You have to get the sole redone from time to time once it wears down, but the rest of the shoe will last you a good 30-40 years with adequate care.
I would love to learn more about custom leather boots. Do you have a link with more information on where you get this done, etc?
I got mine done in a very small shop in Berlin from a Schuhmachermeister. Shes unfortunately not doing shoes anymore. Supposedly there are only around 100 left in all of Germany. I know Florence in Italy also still has quite a few shoemakers.
Its likely a major city close to you still has at least one that still makes shoes. This is something you want to get done in person as they must have the exact measurements of your feet.
Bloomberg did a relatively short video on it a few years back. It explains a bit about the process. https://www.youtube.com/watch?v=ITiyKmYnL-0