I'll be there starting with the pre-conference on Wednesday. I'm going for the education and networking, as well as possibly some job hunting as well.
I don't know if this is your first time in Vegas, but you'll definitely need some more apparel. Firstly, it's gonna be hot as hell if you even dare to step outdoors (>100F), so there will be plenty of sweating...even more if you decide to try any equipment at the Expo...and also, A LOT of the best chances to speak and network happen outside the conference hours, as in places where you may need to be dressed properly just to get in.
Lastly, it's F'ING Vegas, you're seriously gonna bring protein powder? You'll get a bunch of free supplements at the expo, including some protein. And as far as eating choices...ITS FREAKING VEGAS, did I already say that? Every buffet has some form of clean, decent protein.
The first early morning, you'll notice/hear most of the people don't sleep much...CUZ ITS VEGAS, dammit.
As far as Biotest people, Nate Green at the very least should be there.