Volumes have been stated on this issue, and the disquiet and discussion about where the "hot" slot games are located in the casino are still ongoing – more than 60 years after slot machine games were 1st added to the gaming floor in casinos.
The classic rule is that the better slots were placed just inside the main doorway of the casino; so that potential gamblers passing by would be able to see actual jackpot winners … be aroused to come unto the gaming floor and play. Our persuasion is that this is definitely no longer true.
Most of the major casinos presently are mammoth complexes … it’s no longer possible to see inside from the sidewalk, so there is no longer a reason to have the ‘loose’ slot machine games in close proximity to any of the doors.
Yet another classic rule is that loose slots are installed on the major aisles inside the casinos, again so that more persons could see winning jackpots and be roused 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 slot machine games 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!
In recent times, casinos are constantly changing their philosophy about where to place the loose slot machines.