Volumes have been written on this topic, and the contention and disagreement about where the "hot" slots are installed in a casino are still intense – 60 yrs after slot machines were 1st placed in casinos.

The quintessential rule is that the best slot machines were put just inside the main doorway of the casino; so that folks going by would see real jackpot winners and be stirred to come into the casino and play. Our disposition is that this is no longer the case.

The majority of the major casinos today are massive complexes and you can no longer see inside from the sidewalk, so there’s no longer a reason to have the ‘loose’ slot machine games near to any entrances.

Yet another traditional rule is that loose one armed bandits are placed on the major aisles in the casinos, again so that more potential gamblers could see winning jackpots and be energized to play. Importantly 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 slot machine 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!

Nowadays, casinos are constantly changing their perspective about where to place the loose slot games.