Books have been stated on this subject, and the conflict and arguments about where the "hot" slot games are located in the casino are still passionate – more than 60 years after the slots were 1st installed in casinos.
The classic rule is that the more favourable one armed bandits were located just inside the main door of the casino; so that folks passing by would see actual jackpot winners and be possessed to come unto the gaming floor … play. Our stance is that this is definitely no longer true.
The majority of the big name casinos these days are titanic complexes … it is not possible to see inside from the sidewalk, so there’s no longer a reason to have the ‘loose’ slot machine games close-by any entrances.
Yet another traditional rule is that loose slot games are located on the major aisles in the casinos, again so that more folks could see winning jackpots and be motivated to play. Notably though, we find that this also is no longer a universal rule.
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 machine 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 perspective about where to place the loose slot machines.