Books have been stated on this issue, and the debates and discussion about where the "hot" slots are positioned in the casino are still on-going – over sixty years after the slot machines were first placed in the casinos.
The traditional rule is that the superior slots were located just inside the main entry of the casino; so that potential gamblers going by would see actual jackpot winners and be smitten to come unto the gaming floor … play. Our disposition is that this is definitely no longer so.
The great majority of the major casinos today are behemothic complexes … now you can’t see inside from the sidewalk, so there’s no longer a reason to put the ‘loose’ slot machine games in close proximity to any entrances.
Another standard rule is that loose slot games are positioned on the major aisles in the casinos, again so that more people could see winning jackpots and be motivated to play. 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 one armed bandits 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 perspective about where to place the loose one armed bandits.
