Books have been stated on this subject, and the conflict and face-offs about where the "hot" one armed bandits are placed in a casino are still taking place – over sixty years after slot machine games were first placed in gambling dens.
The traditional rule is that the best one armed bandits were installed just inside the main entrance of the casino; so that fun seekers passing by would see real jackpot winners and be stimulated to come unto the gambling floor … play. Our assurance is that this is no longer true.
Just about all of the major casinos today are massive complexes and now you can’t see inside from the sidewalk, so there is no longer a reason to place the ‘loose’ slot machine games in close proximity to any doors.
An additional traditional rule is that loose slot machine games are positioned 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!
Nowadays, casinos are constantly changing their philosophy about where to place the loose slot machine games.