Checked this out when I was in Vegas and took advantage of the special for some of the exhibits in the casinos on the strip we paid $54 for three exhibits which was a great price.
Anyways we picked bodies because we both wanted to see it and I thought it was a amazing exhibit. It was very informative and there was a lot of of specimens on display. They had full size humans on display as well as some organs and bone. There was a section that gave you warning in case you wanted to skip it that had fetus on display, but I would recommend not skipping it as I thought it was informative and probably one of the bigger sections.
As we walked through the exhibits we noticed little scanners and saw people scanning them and they had a ear piece that told about the display. Not sure how much it cost because we where not offered it and had no knowledge of it until we where walking around the exhibit.
Overall The Bodies exhibit is a decent size I'm glad I got to check it out but I would highly recommend buying the 3pack because paying full price is dumb especially in Vegas! Also as you should know there is no photography allowed inside.