I think the whole missing thing is a big lie! I know you're probably saying, "No duh!" but please hear me out.
If Caylee wasn't missing, rather just sent to PR or wherever, or sold to a "good" family, or just being hidden from CA, to allow Casey to have life she wanted, then it's not that odd for her to be out partying.
However naively, I'm still hoping for the best. There's obviously much we don't know from LE, Anthony's etc, but I do know I'm not going to assume Caylee is dead, at least for right now.
I reserve the right to change my mind anytime I want. :crazy:
In the meantime, I think little Miss Casey started a big lie that got way out of hand and she is either having fun with it (to drive her parents crazy-short trip, maybe?) or can't figure out how to come clean without causing herself or someone else an even bigger mess! From what I've seen, herself, most likely!)