He's probably lying when he says he plays for fun.
I'd believe someone with a lot of money if they said they played for the thrill of it, but fun isn't true.
Even when we play okey with friends, we get grumpy when we lose. If we're good at it, we whistle.
Even in this game, even though we don't win or lose money, I don't speak up when we lose.
And if there's a chance of winning or losing money involved, it's a different story.
Winning might be fun, exciting, and entertaining, but losing isn't fun.
Never...
You have a point though, I don't think there's no one that doesn't think of winning when it comes to gambling. When a bettor uses a small amount to chase a big odd, he knows that the chances of winning are very low but he's still captivated by the potential win and hopeful that he would win. Winning is in the back of everyone's mind, the only category of people that don't think about winning too much are those gamblers that are rich