Thanks to the competition, casinos are developing and getting better, and this is better, first of all, for the players. The more competition and the bigger the casino, the better the players will be. They can choose any casino or play at different casinos at once. And that's great, because it gives more opportunities to ordinary casino players.
Nobody likes to work. People always like to have easy money or simple money. They want to do nothing but to have a lot of money. Casino gives a chanse to get some money for doing nothing just for playing games, slots. That is why they are so popular and in demand.
Many people play games not only in casino. Many people think that playing games is a good kind of rest. But if you simply play games you do not lose your money but in casino you play with money. You may lose this money or win money and nobody knows what it will be in the future you will lose money or win.