Books have been set forth on this issue, and the disquiet and discourse about where the "hot" slots are positioned in a casino are still on-going – over sixty years after one armed bandits were first installed in gambling houses.

The standard rule is that the most favorable slot machine games were put just inside the main doorway of the casino; so that folks walking by would be able to see actual jackpot winners … be possessed to come inside … play. Our interpretation is that this is not so anymore.

Nearly all of the mega casinos presently are massive complexes and now you can’t see inside from the sidewalk, so there’s no longer a reason to position the ‘loose’ slots in close proximity to any of the doors.

Yet another classic rule is that loose slots are placed on the major aisles in the casinos, again so that more potential gamblers could see winning jackpots and be motivated to play. Notably however, 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 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 slot machines.