Volumes have been set forth on this item, and the conflict and discussion about where the "hot" slot machines are installed in a casino are still ongoing – 60 years after slots were 1st installed in casinos.
The traditional rule is that the more favourable slot machine games were installed just inside the main entry of the casino; so that persons passing by would see real jackpot winners and be influenced to come unto the gaming floor and play. Our persuasion is that this is definitely no longer so.
Nearly all of the mega casinos today are enormous complexes … it is not possible to see inside from the sidewalk, so there is no longer a reason to have the ‘loose’ slot games near any doorways.
Yet another standard rule is that loose one armed bandits are put on the major aisles inside the casinos, again so that more potential players could see winning jackpots and be inspired to play. Importantly however, 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 the 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 machine games.