Volumes have been said on this matter, and the bickering and discussion about where the "hot" slot games are placed in the casino are still passionate – sixty years after slot machines were first placed in gambling dens.
The traditional rule is that the best slot games were placed just inside the main door of the casino; so that casino fanatics walking by would see actual jackpot winners and be inspired to come inside … play. Our interpretation is that this is no longer true.
The majority of the big name casinos these days are immense complexes … it is not possible to see inside from the sidewalk, so there is no longer a reason to put the ‘loose’ one armed bandits close to any entrances or exits.
An additional traditional rule is that loose slot machine games are positioned on the major aisles inside the casinos, again so that more potential gamblers could see winning jackpots and be encouraged to play. Notably though, we find that this also is not 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 very 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 slot machines.