To offset the cost of testing lady luck, and indeed to encourage guests to continue doing so, casinos serve free drinks - alcoholic and otherwise - via roaming cocktail servers. When hunkering down to gamble in Vegas, the concept of careful spending goes out the window and all income becomes disposable. But most tourists arrive seeking the city’s world-class entertainment, stellar restaurant scene, and, of course, casinos. In Sin City, you can smoke cigarettes indoors, drink on the street, and pay $175 to drive a bulldozer around the desert. Las Vegas: the final frontier of the wild west.