That's the really strange thing Hacche - when I walk past the people playing the machines at my local club very few of them actually seem to be enjoying themselves. Most of them seem to be staring at the machine with quite a blank look on their faces pressing the button repeatedly without pausing between each game. Sure they get excited when they have a big win (small wins seem to have little effect) but almost nobody actually takes the money out - they just gamble it away again.

Have you ever wondered why the clubs are so generous with the food/coffee? It is so that you don't have to leave the machines to feed yourself and they make more money! If they could just incorporate a toilet into the machine they would be laughing. As Chief points out for every $5 worth of food/coffee they give out for "free" they probably get at least $100 in poker machine profits - damn good investment on their behalf.