Volumes have been written on this topic, and the disquiet and discussion about where the "hot" slot machines are installed in the casino are still passionate – sixty yrs after slots were 1st installed in gambling houses.
The quintessential rule is that the more favourable slot machine games were located just inside the main entry of the casino; so that individuals passing by would see real jackpot winners and be mesmerized enough to come unto the gambling floor … play. Our position is that this is no longer true.
Almost all of the big name casinos these days are jumbo complexes … it is not possible to see inside from the sidewalk, so there is no longer a reason to situate the ‘loose’ slots close to any doorways.
An additional standard rule is that loose slot machines are installed on the major aisles in the casinos, again so that more persons could see winning jackpots and be influenced to play. However, 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 the slot machines 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!
Nowadays, casinos are constantly changing their perspective about where to place the loose slot machines.