Volumes have been said on this matter, and the debates and ruckus about where the "hot" slot machine games are installed in a casino are still bubbling – sixty years after slot machine games were 1st placed in casinos.
The standard rule is that the best one armed bandits were put just inside the door of the casino; so that casino fanatics passing by would be able to see real jackpot winners … be tempted to come into the casino and play. Our assurance is that this is no longer the case.
The majority of the major casinos today are colossal complexes … it is not possible to see inside from the sidewalk, so there’s no longer a reason to put the ‘loose’ slots in close proximity to any doors.
Yet another standard rule is that loose slot machine games are located on the major aisles in the casinos, again so that more potential players could see winning jackpots and be galvanized to play. Importantly 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 slots 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!
These days, casinos are constantly changing their philosophy about where to place the loose slot games.