Volumes have been said on this issue, and the contention and ruckus about where the "hot" slot machine games are located in the casino are still intense – over sixty yrs after slot games were 1st placed in gambling dens.
The classic rule is that the best slot machine games were installed just inside the main entry of the casino; so that people walking by would be able to see jackpot winners and be drawn to come unto the gambling floor … play. Our position is that this is no longer the case.
The majority of the big name casinos these days are enormous complexes and it’s no longer possible to see inside from the sidewalk, so there’s no longer a reason to position the ‘loose’ slot machines close to any entrances or exits.
An additional standard rule is that loose one armed bandits are installed on the major aisles in the casinos, again so that more folks could see winning jackpots and be encouraged to play. Notably however, 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 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 philosophy about where to place the loose one armed bandits.