4) You get more bang for your buck
If you’re a hardcore planner and know your way around a Disney park, I honestly believe you get more bang for your buck when you purchase the park hopper add-on. I have done many park days where I have park hopped and still managed to hit all of the major attractions, plus my favorites, at whatever parks I was visiting. It’s especially a good idea if you plan on visiting two parks that have less of an attraction/entertainment lineup than the others, such as Hollywood Studios and Epcot. I love both parks, but I can easily do both of them in a day if I hit my favorites and keep on moving!