I see that experience, and location have much to do with one's opinion on moccasins. Here in Kansas, trekking is difficult to accomplish, being as most of the land is in private hands, with no publicly owned wilderness areas. That said, however, the prairie is pretty forgiving on moccasin soles.
I had a pair of Ft. Ligonier style shoepacks that I wore for a couple of decades. Tops were made from brain tanned elk hide, the triple soles were made of oil tanned cow hide. I repaired the repairs so often that I finally couldn't fix them anymore, and have consigned them to the scrap box.
My current two pair are made from very thick brain tanned moose hide. I expect to get quite a few years' worth of wear from them each. I wear them mostly at shoots and rendezvous. Which reminds me, I need to fix some of the stitching that is coming apart. Leather is still in top shape.