Books have been set forth on this issue, and the bickering and disharmony about where the "hot" video slots are placed in a casino are still bubbling – over sixty yrs after slot machine games were 1st placed in the casinos.
The quintessential rule is that the more favourable one armed bandits were put just inside the main foyer of the casino; so that individuals going by would be able to see actual jackpot winners … be stirred to come unto the gaming floor … play. Our point of view is that this is not so anymore.
Almost all of the major casinos presently are giant complexes … you no longer can see inside from the sidewalk, so there’s no longer a reason to put the ‘loose’ slot machines close to any doors.
Yet another standard rule is that loose slots are positioned on the major aisles in the casinos, again so that more folks could see winning jackpots and be roused to play. Notably 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 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!
These days, casinos are constantly changing their perspective about where to place the loose slot machines.