Books have been stated on this item, and the bickering and face-offs about where the "hot" slot machines are positioned in the casino are still on-going – sixty years after one armed bandits were 1st installed in gambling houses.
The quintessential rule is that the superior one armed bandits were installed just inside the entrance of the casino; so that individuals going by would see jackpot winners … be attracted to come unto the gaming floor and play. Our disposition is that this is definitely no longer true.
Most of the major casinos today are mammoth complexes and it’s no longer possible to see inside from the sidewalk, so there’s no longer a reason to situate the ‘loose’ slot machine games close to any doorways.
Another traditional rule is that loose one armed bandits are put on the major aisles in the casinos, again so that more fun seekers could see winning jackpots and be roused to play. Notably 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 one armed bandits 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 games.