The Gallery is a nice alternative to the stereotypical Vegas activities. I was here for the Warhol exhibit.
For the size of the of the exhibit and the cost, I wouldn't recommend it unless you love the artist. General Admission, out of state , is $16. This is high considering you can go to MoMA in NYC for $25 or the Andy Warhol Museum in Pittsburg for $20 and see his work as well.
You could walk through the show in 5 minutes if you didn't read the picture placards or listen to to hand held audio device that was included with admission.