Volumes have been set forth on this issue, and the disquiet and face-offs about where the "hot" slot machine games are positioned in a casino are still intense – more than sixty years after the slot machines were 1st added to the gaming floor in the casinos.
The standard rule is that the better slot games were located just inside the main door of the casino; so that persons walking by would see jackpot winners … be mesmerized enough to come unto the gambling floor and play. Our theory is that this is not so anymore.
Just about all of the major casinos presently are colossal complexes … you can no longer see inside from the sidewalk, so there is no longer a reason to situate the ‘loose’ slot machine games close-by any entrances.
Yet another traditional rule is that loose slot machines are positioned on the major aisles inside the casinos, again so that more folks could see winning jackpots and be encouraged 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 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!
Nowadays, casinos are constantly changing their philosophy about where to place the loose slots.