Like any business in a capitalist society, casinos exist to make money. Those that do well bring billions of dollars each year to their owners, investors, and Native American tribes. In addition, state and local governments reap casino tax revenues.

Casinos rely on a variety of techniques to attract and keep gamblers. They create stimulating atmospheres and offer a multitude of perks to encourage patrons to spend more money. They also use sophisticated security measures. For example, some casinos employ “chip tracking,” a system that allows them to monitor the exact amounts wagered by each player minute by minute. Others use electronic monitoring of roulette wheels to detect any statistical deviation from expected outcomes.

Some of the world’s most famous casinos are located in exotic destinations. For instance, Venice’s Casino di Venezia is set on the city’s Grand Canals, and guests arrive by a free boat shuttle service or on foot. Other famous casinos are found in Paris, Singapore, and Macau.

In the United States, casinos are categorized by their federal NAICS code: 713210. The industry includes establishments that operate gambling facilities and offer table games, slot machines, and other gambling activities. It also includes casinos that are operated in conjunction with hotels. In 2004, 54% of Americans reported that they found casino gambling acceptable for themselves. Only 16% of respondents in the same survey indicated that they found it unacceptable for anyone else. The results of this poll are consistent with the general consensus that gambling in a casino is a fun and harmless pastime.