Volumes have been set forth on this issue, and the bickering and disagreement about where the "hot" slots are positioned in a casino are still ongoing – over sixty yrs after the slot machines were first installed in gambling dens.
The standard rule is that the very best slots were installed just inside the main doorway of the casino; so that folks passing by would see jackpot winners and be baited to come inside … play. Our feeling is that this is definitely no longer the case.
Nearly all of the big name casinos presently are immense complexes and it’s no longer possible to see inside from the sidewalk, so there is no longer a reason to situate the ‘loose’ slot games near to any doorways.
Another traditional rule is that loose one armed bandits are installed on the major aisles in the casinos, again so that more potential gamblers could see winning jackpots and be inspired to play. However, 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 philosophy about where to place the loose slot machine games.