Our motivation is that we live in Seattle and have a 3 hour time difference. For our family to get to a 7am opening, it means we have to get up between 2 and 3am our time to get to the park by am eastern. When the parks are open later, we can get up later, therefore allowing us time to adjust to the time change. We let our daughter stay up later in the evening which gives us shorter lines, and the weather isnt unbearable for us. We are weird, and actually love the hot weather. As for rain, we live in Seattle, enough said....Rain wont melt us. We keep on trekking, and put on the rain gear. We love feeling like we are on vacation, instead of being stuck in a hotel room. We could have stayed home and done that. Magic Kingdom closed at 5pm last time we were there, and it was horrible. We felt like we were missing out.