Volumes have been stated on this matter, and the conflict and discourse about where the "hot" slot games are located in a casino are still happening – over sixty years after the slot machines were 1st placed in gambling dens.
The traditional rule is that the superior slot machines were positioned just inside the door of the casino; so that fun seekers walking by would see jackpot winners … be aroused to come unto the gambling floor and play. Our theory is that this is no longer true.
Just about all of the mega casinos today are jumbo complexes and it’s no longer possible to see inside from the sidewalk, so there’s no longer a reason to put the ‘loose’ slot machines near any of the doors.
Yet another classic rule is that loose slots are put on the major aisles inside the casinos, again so that more potential players could see winning jackpots and be energized to play. Nonetheless, 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 slot 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 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 slot games.