Books have been said on this subject, and the debates and interchanges about where the "hot" slot machines are placed in the casino are still there – more than sixty years after slot games were first added to the gaming floor in gambling houses.
The traditional rule is that the better slot games were positioned just inside the entrance of the casino; so that everyone passing by would see real jackpot winners … be mesmerized enough to come into the casino … play. Our verdict is that this is definitely no longer the case.
Just about all of the large casinos presently are massive complexes … you no longer can see inside from the sidewalk, so there is no longer a reason to situate the ‘loose’ slot machines near to any entrances.
Another standard rule is that loose slot games are installed on the major aisles inside the casinos, again so that more fun seekers could see winning jackpots and be energized 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 the slots 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 one armed bandits.