@Sharkman, I didn't think that you were accusing C2C of misconduct; you even stated you weren't doing that in your original post. I just wanted to mention my past experience with them for those who may be unfamiliar with C2C. Sorry if that came across differently...
Your points are valid regarding use of all available images in trying to determine the quality of a coin being considered from an online dealer. The quality of images vary greatly across different dealers, auction houses and TPGs, and that's something we always have to factor in when making the decision on purchasing a coin.