A casino is a business, and like any other business, it needs to generate a certain amount of gross profit. In order to achieve this goal, casinos have several built-in advantages that ensure the house will win in the long run.
The most obvious of these advantages is the fact that players have a limited number of bets, and it is impossible for a player to win more money than the casino can afford to lose. This, combined with the fact that most games have a certain mathematical expectancy of winning or losing, means that casinos are almost always guaranteed to make money.
Casinos can also make huge profits by charging for admission, drinks and food, and offering live entertainment. These profits have allowed many of the major American gambling establishments to expand to other regions of the country, and have even helped fuel a growing Native American casino industry.
With all this money being handled inside a casino, it is not surprising that cheating and theft are a common problem. This is why casinos invest a large amount of time, money and effort into security.
While some people may view these measures as excessive, they are essential for ensuring the safety of patrons. However, something about gambling seems to encourage people to try and cheat or steal, either in collusion with others or on their own. This is why casino security is so important, and why these security measures are constantly evolving.