Blackjack is a card game of chance where you are betting to get the highest card against the dealer. In many casinos, the odds are basically break even (the house advantage is as small as .02%).
Compare that to other games found in a casino, where the house odds can be as high as 33%.28 You are in Las Vegas for a friend's bachelor party and are playing blackjack. You brought $500 with which to gamble. So far, luck has been with you and your $500 has almost doubled; you are looking at $950 of chips. This is your last night and are leaving the next day. What might motivate you to continue and try to increase your winnings? What might cause you to stop and be happy with what you have? Would the fact that your mortgage is due next month and you are a little short influence your decision?