Books have been said on this item, and the debates and feuds about where the "hot" slot machine games are placed in the casino are still rampant – 60 years after slot machine games were 1st placed in gambling houses.
The classic rule is that the most favorable slot machines were positioned just inside the main entrance of the casino; so that casino fanatics passing by would see real jackpot winners … be enticed to come unto the gambling floor … play. Our conviction is that this is definitely no longer so.
The great majority of the mega casinos today are colossal complexes … you no longer can see inside from the sidewalk, so there is no longer a reason to situate the ‘loose’ slots near to any of the doors.
Yet another standard rule is that loose one armed bandits are located on the major aisles inside the casinos, again so that more potential gamblers could see winning jackpots and be encouraged to play. Interestingly though, we find that this also isn’t a universal rule any more.
What casinos found over the years is that people walking down the busy aisles were frequently on the way to somewhere else. If they played the slot machines at all, they would simply put in their loose change because they happened to be walking by. Win or lose, they would very often not stop to keep playing. And the very last thing a casino wants is for someone to win a jackpot by playing only a few coins and then not stay to put it all back in!
In recent times, casinos are constantly changing their philosophy about where to place the loose slot machine games.