I think that KC's ability to manipulate everyone around her is key to the way this played out. I really believe that she was able to manipulate CA into believing that the imaginary nanny kidnapped Caylee. CA loved her granddaughter and KC manipulated her into believing Caylee was alive. I think the story about the nanny was believed because the only other alternative was that Caylee was dead. CA held on to that hope and ran with it, and if I were her I'd probably have done the same thing. That 0.000001 chance would be all I needed to search the country for my grandchild. And if some big tv network offered me six figures to give them a video, I'd probably do it. Searching for that child, however fruitless it was to the rest of us, cost money, and that was an easy way to find the money to keep the search and hope alive. So if the A's sold videos or photos, I'm not going to fault them for it.
And all this talk about CA and GA not working and living the high life is , no offense, a load of crap. How could anyone go to work everyday when their granddaughter is missing and presumed dead. How would CA safely care for a pt when this is on her mind? IMO George and Cindy are victims of KC as well.