Several players are working on breeding quality horses. Breeding mechanics are not so player-friendly (see this thread at the Mojang forum: https://bugs.mojang.com/browse/MC-16533
How about horse breeding as an industry, with some sort of industry building that would fit well with player-built stables around it? The benefit would be to make it significantly easier to breed a better stat in a horse that comes from parents with lesser stats.
I have no idea how complicated this would be to mod into the game--just an idea.
I understand that notion; however, it is an argument that could be made against any industries/perks (e.g., "enchanting industry? But I spent all this time mining lapis and making spell books the vanilla way . . .").
Since I started working on the world rail again i think I figured out an idea for this industry's level 50 reward. A train station that requires a town owner to TP a player into the town via buttons. It would have to be a two-parter because there would be a underground station connecting to the world rail and the actual station in your town.
BTW I can't continue working on the east rail because it's inside someone's territory. Also I would like perms to finish building the staircase from the Towns building into the main station.