Books have been set forth on this topic, and the disquiet and discord about where the "hot" slot machines are placed in the casino are still rampant – 60 yrs after one armed bandits were first installed in casinos.

The traditional rule is that the better slot games were put just inside the main entry of the casino; so that everyone passing by would be able to see actual jackpot winners and be keen enough to come unto the gaming floor … play. Our view is that this is definitely no longer so.

Practically all of the major casinos these days are grand complexes and you no longer can see inside from the sidewalk, so there is no longer a reason to place the ‘loose’ slot machine games near to any entrances.

Yet another classic rule is that loose one armed bandits are installed on the major aisles inside the casinos, again so that more people could see winning jackpots and be influenced to play. Interestingly though, 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!

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