Books have been stated on this subject, and the bickering and discourse about where the "hot" slots are placed in the casino are still bubbling – 60 years after slot games were first installed in gambling houses.

The quintessential rule is that the superior slot machines were placed just inside the door of the casino; so that folks going by would see real jackpot winners … be impressed enough to come unto the gaming floor and play. Our reckoning is that this is not so anymore.

Many of the mega casinos nowadays are colossal complexes and now you can’t see inside from the sidewalk, so there’s no longer a reason to place the ‘loose’ slot machine games near to any entrances or exits.

An additional traditional rule is that loose slot machines are installed on the major aisles inside the casinos, again so that more fun seekers could see winning jackpots and be encouraged to play. Nonetheless, 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 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 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 philosophy about where to place the loose one armed bandits.