During my last Vegas trip Cashman @ Cirque took our group pictures.
They were quite cute, though we either would have preferred more direction or less direction as per the pictures, especially considering the two we received were almost exactly the same facially.
We weren't offered any online pics (that would have been awesome) but ended up purchasing the two in the book for $45, which considering we paid almost $200 per ticket, split between two of us, wasn't that bad.
A nice memory of the visit, but much more frou frou than it needed to be. We could have done without the book and would have been willing to download the online pictures for a small fee. I'd love to see them switch over to an easier system.