We have spent Trillions upon Trillions of dollars to fly the shuttle into space just to put satellites in orbit and run scientific experiments. If it is true the moon is the only planet we have been able to put a man on. Why would we not go back there and explore, drill and set up camp. Hmmmmmmmmm
Because it's not a planet. It's just a big dead rock. If there are any valuable minerals the cost of getting them to earth would be thousands of times their value. Putting a shuttle into earth orbit is a HELL of a lot easier than going to the moon.