Books have been stated on this item, and the disquiet and arguments about where the "hot" slot machine games are located in a casino are still rampant – more than 60 years after the slot machines were 1st added to the gaming floor in gambling houses.
The traditional rule is that the better slot machine games were put just inside the main entry of the casino; so that potential gamblers walking by would see actual jackpot winners … be challenged to come unto the gambling floor … play. Our conviction is that this is definitely no longer the case.
Almost all of the major casinos today are magnificent complexes … now you can’t see inside from the sidewalk, so there’s no longer a reason to put the ‘loose’ slots in close proximity to any doors.
An additional traditional rule is that loose slot games are placed on the major aisles inside the casinos, again so that more folks could see winning jackpots and be inspired to play. Importantly 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!
Today, casinos are constantly changing their perspective about where to place the loose slot machine games.