What is a Casino?


A casino is an establishment where people can gamble by playing games of chance. Modern casinos are often elaborate resorts with entertainment, shopping centers and hotels, but they can also be small card rooms or even slot machines in a bar or restaurant. Casino gambling brings in billions of dollars each year for the companies, investors, Native American tribes and state and local governments that operate them.

Gambling has been a part of human culture throughout history. It was an important source of revenue for the Romans, Greeks and Egyptians, and is still a significant part of many societies.

Casinos have a built in mathematical expectancy that ensures that the house will win money over time, and the casino’s profit margin is known as the “house edge.” A casino’s profit margin can be very small, but it can add up quickly with millions of bets.

To make up for this, casinos give out free items to big spenders, known as “comps.” In the 1970s Las Vegas was famous for its cheap buffets and free show tickets for top gamblers. This strategy encouraged more people to come, and increased gambling revenue. Casinos use bright and sometimes gaudy floor and wall coverings that are designed to stimulate and cheer patrons. They often don’t have clocks on the walls, because it is believed that seeing a ticking clock might cause gamblers to lose focus.

Casinos are also well-staffed with security personnel. They have to be, because gambling is a notoriously dishonest business. A childhood friend of mine once worked security at a Las Vegas casino. He told me that he had to remove people from the casino who were soiling themselves because they thought they were on a winning streak.