Books have been said on this issue, and the disquiet and face-offs about where the "hot" video slots are placed in the casino are still taking place – over 60 years after slot games were first placed in the casinos.
The traditional rule is that the superior slot machine games were placed just inside the entrance of the casino; so that potential gamblers passing by would see jackpot winners … be mesmerized enough to come inside … play. Our point of view is that this is definitely no longer the case.
Practically all of the large casinos presently are mammoth complexes … it is not possible to see inside from the sidewalk, so there’s no longer a reason to place the ‘loose’ slot machines close to any of the doors.
Yet another classic rule is that loose one armed bandits are located on the major aisles in the casinos, again so that more potential gamblers could see winning jackpots and be galvanized 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 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!
Nowadays, casinos are constantly changing their perspective about where to place the loose slot machine games.