Volumes have been stated on this item, and the conflict and discourse about where the "hot" slot machine games are installed in a casino are still on-going – sixty yrs after slot machine games were first added to the gaming floor in the casinos.
The standard rule is that the best slot machines were put just inside the main entrance of the casino; so that potential players walking by would see jackpot winners … be aroused to come inside and play. Our perspective is that this is definitely no longer the case.
The majority of the large casinos presently are monstrous complexes and you no longer can see inside from the sidewalk, so there’s no longer a reason to have the ‘loose’ slot games close-by any of the doors.
An additional classic rule is that loose slots are positioned on the major aisles in the casinos, again so that more fun seekers could see winning jackpots and be motivated to play. Nonetheless, 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 the 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!
Today, casinos are constantly changing their perspective about where to place the loose slots.