Actually, people who gamble purely for entertainment is also a problem that most people overlook. Whenever we hear about gambling, we always associate it with the potential profit it may reward a person. Though the risk may be high, but people always look and dream about the amounts of money they would win if they gamble.
I read somewhere that those who gamble with fun and lose control of that activity has more possibility of being a gambling addict than those who play for profit as long as the person who play for profit never chases losses.
The possibility to get addicted is basically equal for both. Those who are gambling for fun and those who are gambling for money has equal chance to get addicted, it depends on how the gambler control themselves. Anyone may think in the beginning that they are going to gamble for fun or for profit but they set their own limit before start. However, it may change during the process while gambling. Emotion may change based on the on going situation in the process and it may change the plan.