The guy selling lunar real estate is interesting. It's a novelty issue because no one owns the rights to lunar property. You cannot legally sell something you do not own. There is no legal jurisdiction on the moon, so at this point no one can prosecute people selling lunar property. But when a permanent settlement is established on the moon, all of these property claims will be found to be invalid. It is interesting that the guy has made millions of dollars selling something he does not own and does have the right to sell.
I don't think anyone will ever cost-effectively mine helium-3 and bring it back to earth.
I wonder if Bush's moon program is still active after Obama stripped $billions from NASA's budget. He did that almost immediately after giving a speech to NASA employees where he vowed to continue support for the space program.
"Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote." -- Benjamin Franklin