I have to put in my two cents here.
One of the arguments, stems from lack of sufficient technology.
The moon landing was in 1969. We had already sent dogs, monkeys and people (among other things) into orbit. The British already had radio guided missiles in 1917. Though rockets weren't really used for war until WWII, and then by the Germans with V-1s and V-2s.
We had achieved nuclear explosive devices in 1945 for crying out loud. And you doubt mans ability to do these things without computers?
As for the NASA scientists ineffective arguments against conspiracies, from their point of view, technology was, and is sufficient to fake these things, so all of the evidence they have to prove these things really happened, happen to be the same "evidence" the theorists are using to refute the landing.
As for the recording media becoming degraded, I really am not sure. If stored properly, magnetic media can last quite a while, and currently, can be restored quite easily. It may have simply been lost.
The pictures are neat though, but, as an amateur graphic designer, I know how easily these things can be fabricated, so while I believe they're authentic, I don't expect everyone to.
Finally, things like the Hubble and other man made, image transmitting satellites do something interesting these days (or did for awhile, I'm too lazy to find a link). NASA will release the raw files on line for people to convert into visible spectrum and images themselves and submit back, and NASA will show these to the public while they work on the same files themselves, and then show the finished product. It can probably be said that the raw files could be false, etc. etc., but you have to trust somewhere, or not.