To maximize your chances of winning, you must absolutely avoid games that carry a massive casino advantage. The 'house edge' dictates exactly how much money the casino expects to keep from every wager over the long term.
For most gamblers, a casino chip is simply a temporary plastic tool used to facilitate a bet at the blackjack table. A dedicated subculture of hobbyists, known as numismatists, collect, trade, and preserve these small clay discs.