Why are Las Vegas Hotels more expensive during September than June ...

Take 60k people, divide them up into 3 people per room, that'd be 20k hotel rooms or enough to completely fill The Bellagio, Luxor, MGM Grand Caesars Palace and The Mirage. That's the most likely culprit of the higher ... i am trying to find good deals for a hotel, resort or anything in las vegas for march 19 through the 22. my family of four really want to stay somewhere nice, as we want to make our experience memorable. Does anybody know of GOOD websites that will give ...