Volumes have been said on this issue, and the debates and disharmony about where the "hot" one armed bandits are installed in the casino are still there – more than 60 years after slot games were first placed in gambling houses.
The standard rule is that the most favorable slot machines were put just inside the main door of the casino; so that casino fanatics passing by would be able to see jackpot winners and be possessed to come into the casino … play. Our interpretation is that this is no longer the case.
Practically all of the major casinos these days are giant complexes and you can no longer see inside from the sidewalk, so there is no longer a reason to place the ‘loose’ slot machine games in close proximity to any entrances.
Yet another traditional rule is that loose slot games are located on the major aisles inside the casinos, again so that more fun seekers could see winning jackpots and be inspired to play. Importantly however, 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 slot games 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 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 one armed bandits.