Yeah, well, you don't really need a "reason." I pretty much lost myself in the game yesterday, running around looking for far-off shrines and ores. And the fact that that's even possible while STILL feeling that there's so much left undone and unexplored, is saying a lot.
Dungeons? Beasts? Yeah, I'll probably get there someday.
To be clear, the good far and away outweighs the bad. But weapon durability is crap, there really should have been some way of maintaining your preferred weapons. Also, compared to Twilight Princess, your abilities on horseback are limited. You can't throw bombs, can't use any of the slate functions, really, and no Hook/Clawshot means you can't pick up items, which is the meat and bones of BotW. Essentially you have to hop off every time you see anything remotely interesting, and that gets tiresome.