It may cost a lot of money, but it was a symbol to Americans and the rest of the world that The United States would lead the charge in exploration, innovation, creativity, drive..you get the picture.
Sadly, with the polluting of the world, and extreme overpopulation around the globe, the most intelligent minds on our planet have said the only way to the future of our species in the long run is through space exploration and colonization.
I think it's important stuff, and it's troubling that it is coming to an end without a plan to move forward with the next step in this frontier.