Gambling is unique in different locations, by your assumptions, what do you think people around you gamble on the most in a casino?
Do you think table games like Baccarat, Blackjack, Roulette, Poker, pool? or Gaming machines like slots, random number games, or sports?
When a new casino is about to decide the games to have on their platform do they consider the popular games in the specific regions where they intend to make their gambling services available, or selections are usually based on popularity of games generally?
It is a well known fact that slot machines are the games which bring the biggest revenue and billion dollars profit to casinos so they are the most popular, if you see in online casinos, land line ones you will see the same pattern, you will never see slots machine empty or people not playing them and there is a good reason for that, they can give you a huge win in an instant and that is the hook which keeps everyone into playing them, I mean gamblers, I would never for example go into a casino where there are a lot of games and never try the slot machines first, it is a normal gambler behavior. In fact now I tend to believe much but much more in land line casinos as they are audited and I don't believe at all at online ones where I have seen huge number of lost spins in slot machines compared to land line ones, the algorithm is surely different or the RTP is messed up in online casinos.