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You're not going to do most of that, especially the moon mining, so keep dreaming. Most other things, especially crystal production can be done on earth. Anything dealing with mining in space will not happen in our lifetime, nor is it really worth the effort since the money and resources would cost more to get something that could launch and mine in space and send back material than you would make on the mining itself.
There are plenty of substances that are rare enough on earth that it could be cost effective to get them from space. As we keep consuming resources, it only makes space extraction more and more viable. Rare earth elements used for high temperature super-conductors available in quantity would be extremely useful. Using robots to mine asteroids isn't inherently that expensive, and dropping them back to earth is cheap.
Furthermore, we already have to put up satellites and maintain them today, so we are going to need some kind of spacecraft regardless.
I mean, if we want to just list pipe dreams, sure. The space program could allow us to swim with space whales on Io. But I think we need to think practically when we talk about the usefulness of NASA. There are some uses there, I would say primarily in astronomy and astrophysics. I wouldn't exactly nix NASA, but I wish people would quit thinking Star Wars and Star Trek and think about the practical applications of NASA.
Nothing that Scarecrow mentioned is science fiction at all, all of it reasonable. Not everything may end up being cost effective or useful, but don't confuse innovation for fantasy. The things he mentioned ARE practical applications.
The whole "humans colonizing the solar system" crowd are the ones you need to look out for.