To say nothing of all the other countries that participated in various parts of the tracking network, etc. For instance, an Australian radio dish received the images of Armstrong setting foot on the moon.
Then there were thousands of civilian contractors who were part of the program and participated in the actual landings. People who built parts of the equipment used and were involved in running it, and detected errors, did fixes, etc. Were all of these people involved, too? I knew some of these people, and they're not the type to keep secrets. Or was there small groups of conspirators in the system who managed to fool the people who designed and built the actual systems into thinking they were actually on the moon?
One thing I will tell you is that those who point out "errors" in the moon photos really need to take a high school physics class. None of their "errors" are correct in any sense. Of course, this doesn't mean the landing took place, just that the people who are pointing out errors are idiots. Or maybe the people pointing out errors are actually part of the conspiracy and are deliberately pointing out nonsense.
There are many real, observable things that came out of the space program. Communications satellites. Electronic and other technology. Skylab was visible from the earth. Lots of amateur astronomers spotted the various rockets satellites and capsules and tracked them.
As I've said before, I think some people in the government would kill us in our sleep and sell our organs if they thought the profit vs. risk was worth it. Faking a moon landing is just the way it happened is just too hard.