Books have been written on this subject, and the contention and arguments about where the "hot" slot machine games are installed in the casino are still happening – more than 60 yrs after slots were 1st placed in casinos.
The classic rule is that the best slots were placed just inside the door of the casino; so that people going by would be able to see jackpot winners and be drawn to come inside … play. Our disposition is that this is no longer the case.
The majority of the mega casinos presently are jumbo complexes and it is not possible to see inside from the sidewalk, so there is no longer a reason to place the ‘loose’ slots in close proximity to any doors.
Yet another traditional rule is that loose slot games are installed on the major aisles in the casinos, again so that more people could see winning jackpots and be motivated 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 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!
Nowadays, casinos are constantly changing their philosophy about where to place the loose slots.
