Volumes have been set forth on this item, and the conflict and ruckus about where the "hot" video slots are positioned in a casino are still on-going – more than sixty years after the slot machines were first placed in casinos.
The classic rule is that the superior slot games were located just inside the entry of the casino; so that everyone passing by would see jackpot winners and be convinced to come unto the gambling floor and play. Our theory is that this is not so anymore.
Practically all of the mega casinos these days are titanic complexes … it is not possible to see inside from the sidewalk, so there is no longer a reason to situate the ‘loose’ slot machine games close to any exits.
An additional standard rule is that loose slots are installed on the major aisles inside the casinos, again so that more potential players could see winning jackpots and be galvanized 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 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!
Today, casinos are constantly changing their perspective about where to place the loose slot machine games.