It still comes back to the fact that NASA would be totally and utterly discredited if, on a subsequent mission to the moon by some other nation, no evidence could be found of the original moon landings.
Until you can absolutely prove that these landings were faked, it must be taken that they were not.
That is hardly a good way of looking at it. If they were faked as you rightly say NASA and America would be totally discredited, so if they were faked, NASA would spend massive amounts of energy, to prove they were not. To seek a totality of proof, is hardly empirical, surely you look at all the facts and sit with the greatest weight of evidence.
It could be both, they did go to the moon but they Faked the moon landing video etc to hide information from Russia. That way everyone would be right. 
I'm still- with jury out, on the subject