Books have been said on this issue, and the controversy and disharmony about where the "hot" slot machine games are installed in the casino are still intense – sixty yrs after slot machines were 1st installed in the casinos.
The standard rule is that the more favourable slot machine games were placed just inside the entry of the casino; so that fun seekers going by would see actual jackpot winners and be attracted to come unto the gambling floor … play. Our sneaking suspicion is that this is no longer the case.
Almost all of the major casinos nowadays are massive complexes … now you can’t see inside from the sidewalk, so there is no longer a reason to place the ‘loose’ slot machine games near any entrances or exits.
Yet another classic rule is that loose slot machine games are placed on the major aisles inside the casinos, again so that more folks could see winning jackpots and be roused to play. However, we find that this also isn’t 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 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!
These days, casinos are constantly changing their philosophy about where to place the loose slot machines.