Volumes have been set forth on this subject, and the bickering and squabbling about where the "hot" slot machine games are located in the casino are still there – 60 yrs after the slots were 1st added to the gaming floor in casinos.
The classic rule is that the more favourable slot machines were installed just inside the main entry of the casino; so that persons going by would see real jackpot winners … be drawn to come unto the gambling floor … play. Our sneaking suspicion is that this is definitely no longer so.
Most of the mega casinos today are huge complexes … you can no longer see inside from the sidewalk, so there is no longer a reason to position the ‘loose’ one armed bandits in close proximity to any of the doors.
Another traditional rule is that loose slot games are installed on the major aisles in the casinos, again so that more potential gamblers could see winning jackpots and be encouraged to play. Interestingly 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 slot 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!
In recent times, casinos are constantly changing their perspective about where to place the loose slot machines.