I personally don't believe we went. Lots of holes in the story, the cold war, don't think the technology of a calculator could of gotten us there. Show me a picture from the hubble or any other telescope and i'll change my mind.
Probably the main reason we have not been back is there is really no scientific reason for us to go back. There is not much if anything a human can do or study on the moon that robots can't do.
Why spend the extra money and risk human life when it's not needed?
We came, we saw, we ate the cheese. No reason to go back..It would still be a risky mission. Even today. We were lucky that none of those missions didn't have a flame out on the lunar lander.