A question for everyone, regarding the "no stars" argument:
I don't ever recall seeing stars in any of the other NASA photos/videos either. Not in video footage from Gemini or the many shuttle missions, not in the close-up shots of planets and moons taken by Voyager I/II and other probes, not anywhere.
The primary objectives of the missions you mention didn't include taking pictures of stars (funny, that -- kinda like how we brought camera equipment to the Moon to, y'know, take pictures of
the Moon 
). You can, however, find some images containing stars if you look. For example:
A couple of spiffy Cassini calibration shots:
If "no stars" means "fake", then how do the moon-landing hoaxers avoid saying that the entire US space program has been faked?
I think it's some disconnect 1) about human space flight 2) undertaken by the evil gubmint. Some flatly believe
1 to be impossible (nothing can leave the firmament, y'know... or, OMG teh radiation!!!1!!11~), and
2 is approached by many CTers with predictable radical skepticism or unfounded distrust.
Robotic spacecraft don't seem to invoke their ire in the same way, and that's always struck me as odd. They don't seem to make the same "insufficient technology" claims about the Mariner, Pioneer or Voyager missions (or anything more recent). Instead, they seem to accept those spacecraft successfully traveled to their destinations, but they shift their focus to "anomaly" claims and allege NASA's withholding the "good" imagery from the public or deliberately manipulating it to "hide" evidence of extraterrestrial shenanigans.
ETA: Doh, I neglected one thing though -- part of the CTer appeal in regard to Apollo stems from the political angles they can play with. The race between the US and USSR opens a variety of conspiratorial chimeras for them to pursue, and "outs" for them to rationalize or justify some of their arguments with anecdotal or connect-the-dots reasoning. Perhaps that's easier for them to latch onto without considering the long list of robotic missions launched by both nations.