Volumes have been written on this matter, and the controversy and discussion about where the "hot" slot games are located in the casino are still taking place – over 60 years after slot machine games were first added to the gaming floor in casinos.
The quintessential rule is that the more favourable slot games were positioned just inside the main foyer of the casino; so that folks passing by would be able to see jackpot winners and be influenced to come unto the gambling floor … play. Our position is that this is not so anymore.
The majority of the major casinos today are giant complexes and you no longer can see inside from the sidewalk, so there’s no longer a reason to put the ‘loose’ slots in close proximity to any of the doors.
An additional traditional rule is that loose slots are located on the major aisles in the casinos, again so that more folks could see winning jackpots and be energized to play. Nonetheless, 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 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 one armed bandits.