Volumes have been written on this issue, and the conflict and ruckus about where the "hot" video slots are placed in a casino are still raging – over 60 years after slot machine games were 1st placed in casinos.
The traditional rule is that the superior slot machine games were located just inside the main entry of the casino; so that people walking by would be able to see real jackpot winners and be baited to come unto the gambling floor … play. Our point of view is that this is not so anymore.
Most of the big name casinos presently are enormous complexes and you can no longer see inside from the sidewalk, so there is no longer a reason to position the ‘loose’ one armed bandits close-by any entrances or exits.
Another traditional rule is that loose slot games are positioned on the major aisles in the casinos, again so that more persons could see winning jackpots and be inspired to play. Nonetheless, 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 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 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 one armed bandits.