Volumes have been said on this item, and the contention and discord about where the "hot" slot machine games are installed in the casino are still taking place – more than sixty years after slot machines were 1st installed in casinos.
The standard rule is that the better one armed bandits were put just inside the door of the casino; so that potential players walking by would be able to see real jackpot winners … be intrigued enough to come into the casino … play. Our observation is that this is no longer the case.
The great majority of the large casinos presently are jumbo complexes … it is not possible to see inside from the sidewalk, so there is no longer a reason to situate the ‘loose’ one armed bandits near to any of the doors.
Another traditional rule is that loose slots are positioned on the major aisles inside the casinos, again so that more fun seekers could see winning jackpots and be galvanized to play. Importantly however, 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 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 philosophy about where to place the loose slot machine games.