THe belief that AK is a half day park is, in my opinion, misguided. If you are only looking for thrill rides, then I get where you are coming from. But AK has more than 18 attractions that appeal to my kids, and they have, at times, spent more than two hours at the dinosaur dig alone. We never finish AK in one day, and usually it takes 2-3 to do everything that our family wants to do. In contrast, we usually finish DHS in 4-5 hours, depending on the wait times for the 4 e-ticket rides. Avatar is part of expanding the park hours with something that will grow AK into a more than one day park for more people, not just those with younger kids (like us).