Casinos are places where people play various games of chance for money. While casinos often feature musical shows, shopping centers and lavish hotels, the vast majority of their profits come from gambling. Slot machines, blackjack, roulette, craps, keno and baccarat are among the many popular casino games. Casinos are found around the world and are a popular form of entertainment for millions of people.
Gambling almost certainly predates recorded history, with primitive protodice and carved six-sided dice being found in ancient archaeological sites [Source: Schwartz]. The modern casino as a place to find a variety of different ways to gamble did not develop until the 16th century, when the gambling craze caused large public casinos to close and private venues called ridotti to emerge. These were often associated with nobles and were a way for them to entertain their friends without worrying about legal problems.
A casino is a popular place to win money, and some players are better than others at certain games. This is why some people earn comps at a casino, which are free goods or services that the casino gives to its best customers. Comps can include anything from free hotel rooms to dinner and tickets to shows. However, comps are not guaranteed and most people who receive them do so by being regular visitors to the casino and spending a significant amount of time playing. It also helps if they are a good tipper.