Because there is little use for us travelling to the moon at the moment, and considering the costs, absolutely no point at all

What’s the use? been there done that got the t-shirt, time to explore new place you know what I mean, if there was water there it might have been worth wile but it is like the dessert. Wait until the discover oil there LOL.

The sets that the government used to film those scenes were lost in a fire the following year. Subsequent budget cuts and increasing demands for 'hush money' from those connected with the original project have both contributed to the unlikelihood of seeing "Man On The Moon 2 - Electric Boogaloo" anytime soon. Sorry fans. :)

Wallace and Gromitt have.

I love Todd Lyons response. That would have been one of mine but I really think that since we did it first and bet the Russians and the ending of the Cold War, there is just no reason to spend that kind of money on something that doesn't directly bring in either power or money to the ones spending the money.

The only way it would become "common" to go to the Moon would be if it held some value that outweighed the cost of going there. Some tout He3 mining as one such possibility or Spaceship construction site for inter-solar travel, maybe mining the moon for some/most of the construction materials. The reason we haven't gone again is because it is simply very costly to go up into space ($6000 per litre of water for example) and uneconomical when combined with the added cost of going to the moon. Long term stay on the moon (more than a few days) would also sky rocket costs and again need a very good reason to do so.

Because the US has a huge debt.

I think it's very ignorant to state something like "been there done that etc..." when talking about supposedly going to the moon. As far as not finding anything of value, the 6 expeditions didn't really do much except take some soil samples and a few rocks. Of course this looked good for the cameras filming to show the world, but honestly not enough research was conducted at the time. Here it is over 20 years later. We now have several space shuttles and the most advanced computers to date. It's hard to believe that with each new improvement to telescopes, and electron-microscopes, not to mention dating processes the moon has absolutely no value to us scientifically. In addition 1970's technology did not allow us to study the shaded side. We left no permenant scientific instrumentation to gather any data, whether it be worthless or invaluable. We just planted a flag and took some rocks. I'm not saying we didn't go, as many seem to believe, but I'm no saying we did either. I just think it's a little strange that we haven't been in over 20 years and we learned everything we possibly could about the moon, it's orbits, the earth's orbit and their relationships and everything else cosmically possibly that would negate further study.

Because the politicians diverted the funds to their own pet projects.