Volumes have been set forth on this subject, and the contention and face-offs about where the "hot" video slots are placed in a casino are still happening – sixty yrs after the slots were 1st placed in casinos.
The traditional rule is that the best one armed bandits were positioned just inside the door of the casino; so that casino fanatics going by would be able to see real jackpot winners … be smitten to come inside and play. Our interpretation is that this is no longer true.
The great majority of the mega casinos these days are grand complexes … now you can’t see inside from the sidewalk, so there’s no longer a reason to have the ‘loose’ slot machines near any doors.
Another standard rule is that loose one armed bandits are located on the major aisles in the casinos, again so that more fun seekers could see winning jackpots and be inspired 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 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 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!
These days, casinos are constantly changing their perspective about where to place the loose slots.