Books have been written on this item, and the conflict and discussion about where the "hot" video slots are installed in the casino are still rampant – more than sixty yrs after slots were 1st placed in the casinos.
The standard rule is that the more favourable slot machines were positioned just inside the main entry of the casino; so that people passing by would be able to see real jackpot winners and be convinced to come unto the gambling floor and play. Our conviction is that this is no longer true.
Nearly all of the large casinos these days are huge complexes … you can no longer see inside from the sidewalk, so there is no longer a reason to place the ‘loose’ slots in close proximity to any of the doors.
Another traditional rule is that loose slot games are placed on the major aisles inside the casinos, again so that more fun seekers could see winning jackpots and be galvanized to play. Interestingly though, 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 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!
Nowadays, casinos are constantly changing their philosophy about where to place the loose slot machine games.