One thing I've learned as a Keen dealer - people who love them don't care if they blow up. Just last week a customer came in and said how much he loves his Keens. He gets a new pair every few months. When I said, "wow, you must have a lot of Keens by now." He just looked at me and said, "no, I just go through them that fast."
To me...that is insane. If the best set of tires you ever owned lasted 5,000 miles would you continually buy more? I don't get it.