Volumes have been set forth on this issue, and the conflict and discussion about where the "hot" slot machine games are located in the casino are still passionate – sixty years after slot machine games were 1st added to the gaming floor in the casinos.
The traditional rule is that the superior slot machine games were located just inside the main doorway of the casino; so that everyone going by would see actual jackpot winners and be smitten to come inside and play. Our feeling is that this is no longer the case.
Nearly all of the major casinos nowadays are massive complexes and you can no longer see inside from the sidewalk, so there’s no longer a reason to put the ‘loose’ slot machines in close proximity to any exits.
Yet another traditional rule is that loose slots are put on the major aisles in the casinos, again so that more people could see winning jackpots and be galvanized to play. Importantly 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 one armed bandits 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 slots.