Volumes have been stated on this issue, and the debates and feuds about where the "hot" slot machine games are located in the casino are still ongoing – sixty yrs after one armed bandits were first installed in casinos.
The standard rule is that the more favourable slot machine games were put just inside the door of the casino; so that fun seekers going by would be able to see real jackpot winners and be mesmerized enough to come into the casino and play. Our thought is that this is not so anymore.
Just about all of the large casinos nowadays are huge complexes … you can no longer see inside from the sidewalk, so there’s no longer a reason to situate the ‘loose’ slot machines near to any doorways.
Yet another traditional rule is that loose slot machines are installed on the major aisles inside 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 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!
Nowadays, casinos are constantly changing their philosophy about where to place the loose slots.