Books have been written on this item, and the controversy and squabbling about where the "hot" video slots are installed in the casino are still happening – over 60 yrs after slot machine games were first installed in gambling dens.
The classic rule is that the better slot machines were put just inside the main entry of the casino; so that potential players going by would see real jackpot winners … be enthralled to come inside and play. Our standpoint is that this is definitely no longer the case.
Nearly all of the big name casinos these days are mammoth complexes … you can no longer see inside from the sidewalk, so there is no longer a reason to place the ‘loose’ slot machine games near any doorways.
Another standard rule is that loose slot machines are placed on the major aisles in the casinos, again so that more folks could see winning jackpots and be roused to play. Importantly though, 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 slot 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 perspective about where to place the loose slot machine games.