Despite the negative publicity and shady characters associated with casinos, the truth is that these venues are primarily designed to draw local players. The majority of their income is derived from slot machines.
Traditionally, casino activities include gambling, and some casinos also host live entertainment events. Today, the modern casino is like an indoor amusement park for adults. Besides gaming, many of these casinos also offer restaurants, stage shows, and other forms of recreational activity.
The most common games offered in a casino are roulette, blackjack, and baccarat. These games provide billions of dollars in profit to U.S. casinos each year. The profits are based on the mathematical expectation of winning these games.
As a result, casinos spend a lot of money on security. They use elaborate surveillance systems to monitor every game and every doorway. They record video feeds and adjust them accordingly to focus on suspicious patrons. They also use cameras in the ceiling. These are placed in every room so that surveillance personnel can watch the whole casino from the ceiling.
In addition to observing the games, casino employees and pit bosses also watch for cheating and other bad behavior. Some casinos have catwalks above the floor so that surveillance personnel can see all the way down to the floor.
Some games are regulated by state laws. But the majority of the games in a casino are governed by basic mathematics. This helps ensure that the casino makes a profit, regardless of how the games are played.