Vegas is deffinately worth seeing at some point in your lifetime, but I would save it as a seperate trip. You can get lost in a casino for hours at a time, and all of a sudden you've lost all the money you had for the rest of the trip. There is alot of free entertainment though if you can resist the temptation to thorw all you money away on gambling, or any of the other expensive atractions. Hover Dam is nearby though. Go there, it's free, important, historical, and a marvel of modern engineering.