I have been trying to do something new with every trip to Walt Disney World. Now, with the time between trips becoming longer and longer, this is more important to me, and in a way easier. With time, things change. Old things are taken away and replaced with new things.
Still, when I look for something new I think about backstage tours. They cost a little more, yes. But they are worth it as they are quite informative.
Another benefit of these tours is that they usually require a very early morning arrival at the park you'll be touring. And those early arrivals offer some rather nice photo opportunities. This comes from an early morning just before the "Walt Disney: Marceline to Magic Kingdom Tour." Wonderful tour!