Casino is an epic 1995 film by Martin Scorsese, starring Robert De Niro, Sharon Stone, Joe Pesci, and Don Rickles. It follows Sam Rothstein (De Niro), a Jewish American gambling expert and handicapper who is hired by the Chicago Outfit to manage their casino operations in Las Vegas. The movie details Sam’s daily operations, the problems he faces with his Mafia bosses, and the gradual breakdown of his personal life. It also depicts the changing nature of Las Vegas as it transforms into a family-friendly theme park.

Like any other business, a casino has to make a profit in order to stay afloat. This is why casinos offer players free things, such as hotel rooms, food and drinks, and tickets to shows, in exchange for their money. These bonuses are called comps. They are awarded to players who spend a lot of time at the casino and place large bets. They can even be offered limo service and airline tickets if they are big enough spenders.

Aside from these free gifts, casinos use other techniques to keep gamblers glued to their games. They play soothing music and waft scented oils through their ventilation systems to create a manufactured euphoria. This ambiance, coupled with the flashing lights and joyful sounds of slot machines, is designed to keep gamblers in the casino for as long as possible.