If you are entering Bodies because you have a thing for guts, gore, and things that make you say "sick, man", you'll be just a tad disappointed as I was.
The Bodies exhibit is expansive and detailed but most of the preserved parts looked plastic and very much lifeless (well... Duh) to me. My favorite parts were the comparisons of healthy lungs and brains to diseased lungs and brains.
If the cost wasn't so affordable, I don't think I would rate Bodies so highly - but based on admission now, it is worth it. Also, they have a human butthole, and who doesn't want to brag about seeing a removed butthole in Vegas?