Disney probably did research to determine how many hours guests were actually spending at each park and how much time it took them to ride an average number of rides. I was at WDW last week and will be going again at the end of September and except at MK, I don't think the reduced hours are going to affect my ability to do all that I am able to do. With so much entertainment and stores closed at Epcot, HS and AK, I think most people who arrive at the parks at opening will find they can do all the things that are open within the reduced hours. So, I'm considering the shaved off hours being hours that I didn't need or wouldn't have productively used. The thing that should be of greater concern is the number of things that aren't available. That's the thing that is making tickets less valuable.