In Vegas playing the slots is a good way to get cheap drinks. They say they are free but the way we look at is if we put say 30 dollars into a machine and catch the cocktail waitress eye she will give the 2 of us a " free " drink. Tip the waitress 1 dollar and on her next round she comes to us. While playing minimum stake and having the occasional win we can get 4 or 5 drinks each. so that costs 34 or 35 dollars, the same drinks at the bar would come in at more than 60 dollars, over a week in Vegas it comes in at a canny little saving. We both smoke so we can sit and have a drink and a smoke at the same time. Not always we do the initial stake and we have walked away slightly up on our initial stake so the drinks were free, but that didn't happen often.
Travel half way round the world , spend a few hours in front of a slot machine so you can get a few drinks cheap and save £20 or so.