poon for pay is illegal in Las Vegas. That doesn't mean that it isn't readily available. You can pay to get an STD in any major city in the United States.
Personally, I have never cared for Vegas. I'm cheap, so I don't gamble. I'm cheap, so I can't see paying $80 to see a show that I can see on tape or DVD for $4. I'm cheap, so I'm not going to pay for a $400/night hooker. I'm cheap, so I'm not going to pay $3.50 for a beer when I can buy a 12 pack for $8. I'm cheap.
Besides, I get sent there to work so often that it's just another workplace for me.
OTOH, I'm sure there are a lot of fun things to do there. Enjoy yourself. The Dam tour is great if you enjoy history and engineering as much as I do.