Books have been said on this item, and the contention and discourse about where the "hot" slot games are installed in the casino are still passionate – over 60 yrs after slot machines were 1st placed in casinos.
The standard rule is that the best slots were installed just inside the entrance of the casino; so that fun seekers passing by would see jackpot winners … be infatuated enough to come into the casino … play. Our estimation is that this is definitely no longer so.
Nearly all of the big name casinos presently are oversized complexes and you can no longer see inside from the sidewalk, so there is no longer a reason to situate the ‘loose’ slot machines close to any entrances.
Yet another standard rule is that loose one armed bandits are installed on the major aisles inside the casinos, again so that more folks could see winning jackpots and be energized to play. Nonetheless, 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 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 philosophy about where to place the loose slot machine games.