Volumes have been set forth on this matter, and the disquiet and interchanges about where the "hot" slots are installed in the casino are still rampant – sixty years after slot machines were first installed in casinos.
The quintessential rule is that the more favourable slot games were installed just inside the main entry of the casino; so that casino fanatics walking by would be able to see real jackpot winners … be smitten to come unto the gaming floor … play. Our resolution is that this is definitely no longer the case.
Most of the mega casinos these days are enormous complexes and you no longer can see inside from the sidewalk, so there is no longer a reason to put the ‘loose’ one armed bandits in close proximity to any doorways.
Yet another traditional rule is that loose slots are located on the major aisles inside the casinos, again so that more potential players could see winning jackpots and be influenced to play. Importantly however, we find that this also is not 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 the slot machines 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!
Today, casinos are constantly changing their philosophy about where to place the loose one armed bandits.