Volumes have been said on this item, and the disquiet and arguments about where the "hot" slot machines are located in a casino are still on-going – sixty years after slots were 1st installed in gambling houses.
The standard rule is that the very best slot machines were put just inside the main doorway of the casino; so that potential players going by would be able to see jackpot winners and be aroused to come into the casino … play. Our conviction is that this is definitely no longer true.
Almost all of the mega casinos these days are herculean complexes and it is not possible to see inside from the sidewalk, so there is no longer a reason to place the ‘loose’ slot machine games close to any of the doors.
Yet another standard rule is that loose one armed bandits are put on the major aisles inside the casinos, again so that more potential gamblers could see winning jackpots and be influenced to play. Notably 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 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 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!
In recent times, casinos are constantly changing their perspective about where to place the loose slot machines.