Glory
W.C. Fields (a famous fan of horses) once said, "Horse sense is the thing a horse has which keeps it from betting on people" (source). Few animals inspire the kind of love people feel for their horses. Seriously, every toy store sells "My Little Pony." Exactly none of them sell "My Little Rhinoceros."
A well-trained farrier loves horses and understands them in ways most of us can't imagine. They may spot an illness or problem with a horse before an owner does and save valuable time in getting the animal treated. Essentially, a farrier knows the health, maintenance, and positioning of a horse's feet are vital to its overall health and well-being.
If you stick with it long enough, are greatly talented, and get the chance to work with a winning race horse, you may eventually find yourself in the aforementioned International Horseshoeing Hall of Fame. But, like an excellent caddie, you'll only be famous in a very niche group.
However, if being immensely proud of your work and accomplishments is enough, then consider the glory all yours.