Volumes have been set forth on this issue, and the disquiet and disharmony about where the "hot" video slots are located in the casino are still there – over sixty years after slot machine games were 1st placed in gambling houses.
The classic rule is that the superior one armed bandits were located just inside the main entryway of the casino; so that everyone passing by would see jackpot winners … be stimulated to come unto the gaming floor and play. Our attitude is that this is definitely no longer so.
Just about all of the large casinos these days are huge complexes … it is not possible to see inside from the sidewalk, so there’s no longer a reason to place the ‘loose’ slots close to any doorways.
Yet another classic rule is that loose slot machine games are put on the major aisles in the casinos, again so that more potential gamblers could see winning jackpots and be motivated to play. Notably 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 the slot machines 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!
Nowadays, casinos are constantly changing their perspective about where to place the loose one armed bandits.