Volumes have been stated on this subject, and the contention and discussion about where the "hot" slot machine games are located in a casino are still rampant – more than 60 years after slot machine games were 1st placed in gambling dens.
The traditional rule is that the better slot machine games were placed just inside the main entryway of the casino; so that everyone going by would see actual jackpot winners and be mesmerized enough to come inside … play. Our sentiment is that this is definitely no longer so.
Nearly all of the major casinos these days are behemothic complexes … you no longer can see inside from the sidewalk, so there is no longer a reason to have the ‘loose’ slot machine games close to any entrances or exits.
Yet another standard rule is that loose slots are positioned on the major aisles in the casinos, again so that more potential players could see winning jackpots and be galvanized to play. Interestingly though, 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!
Today, casinos are constantly changing their philosophy about where to place the loose one armed bandits.