I think the vast majority of the people who go to Disney, go because they want to take their kids to Disney before they are XX years old and don't know anything about whats getting built or not getting built. For a lot of Families, Disney trips are once in a lifetime events and aren't based on construction schedules. They are based on cost, time they can go, and the kids. While that is something that can be changed by Disney never improving, or Universal completely blowing everyone away with new stuff, we are talking a generational, or multi-generational change. Not something thats going to change in a decade or two, or by a couple rides.