I'll usually put 80 cents in a penny machine. If it's "loose" and paying out I can get the winnings up to $50 or $60 from a twenty before cashing out. It's all in good fun for me, but I get where the 'gambling is evil' comes from, even if I don't agree with the sentiment.
There are always people at a casino-and I'm just talking slots here because I don't play table games-sitting blank eyed in front of a machine tapping the spin button and clearly not having fun, but chasing a loss. If I ever found myself thinking, 'one more spin and I'll get that back,' I'd stop...but just as with anything addictive, there are people who cannot. This doesn't make gambling itself a big evil thing. My father's side of the family is loaded with alcoholics, so I drink very rarely so as not to tempt genetics. I live with two smokers who fully see the way they schedule their days around cigarettes and still can't stop. I never picked up a cigarette.
I guess what I'm trying to say is in moderation, gambling can be a fun way to pass an afternoon. Don't bring more money than you can afford to lose. We have a trip planned for April, and I'm really looking forward to it.