Books have been said on this subject, and the bickering and feuds about where the "hot" slot games are installed in the casino are still there – sixty years after slot machine games were first placed in gambling houses.
The traditional rule is that the superior slot machines were put just inside the main foyer of the casino; so that potential gamblers walking by would see actual jackpot winners … be stimulated to come into the casino … play. Our slant is that this is not so anymore.
Practically all of the major casinos these days are magnificent complexes and you no longer can see inside from the sidewalk, so there’s no longer a reason to situate the ‘loose’ one armed bandits near to any of the doors.
Yet another standard rule is that loose slots are located on the major aisles in the casinos, again so that more people could see winning jackpots and be inspired to play. Notably however, 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 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 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 philosophy about where to place the loose slot games.