99% of the time I abhor violence and say it's not the answer.
This falls under the other 1%. ;)
So where do you stand? It has or it hasn't any value? :)
I found some interesting numbers. I don't know how accurate they really are, so correct me if I'm wrong.
To date, $815 billion dollars has been allocated for the war in Iraq since 2003.
To date, $445.1 billion dollars has been allocated for the war in Afghanistan since 2001.
The financial cost of the war has been more than £4.55 billion ($9 billion) to the UK, and over $845 billion to the U.S., with the total cost to the U.S. economy estimated at $3 trillion. (Source)
Those are a lot of money.
Becca and Daniel already pointed out why should we keep focusing on space exploration and space travelling. But instead we keep killing each other.
Of course we did!
If nothing else, the Lunar Retroreflector arrays are clear proof of that. These are used on a daily basis by dozens of observatories around the world.
Are they all in on the conspiracy too?
About your second question - what would be the point? The first time they landed, Americans needed to show that they were more advanced then the Soviets, especially after the Sputnik and Gagarin. After that, there really wasn't anything that a man could do on the moon that a robot couldn't do better, and it would also cost less to get a robot there, and you didn't have to worry about a robots life so much.
Yes they did. ALL evidence points to that fact. Thousands upon thousands of people contributed to the science behind it, the finance behind it, and the organisation behind it. It happened.
It hasn't been done again because there's nothing else to discover...we know everything there is to know about the moon. A useful mission then, but we've come a long way now. Especially in this financial time, how can an administration justify the enormous costs to go to the moon, just for the sake of it?
There are bigger issues to talk about really. This is obvious really.