Exploration
THere was so much to explore on the Moon; It's not just about science per se, but the notion that going to the Moon in person is going to another world besides Earth, and really doing it.
That was the feeling in 1968.
If the youth today doesn't make the difference between fact and fiction, then is it NASA's fault? I don't think so.
One thing that can be done is to have an itinerary exposition with an Orion capsule (the advantage of non-reusability being it can be shown to the public) preferably one that had been in space and allow people to go inside it and take a seat.
Just one example.
