...But from what we have witnessed and seeing the sentiment of the majority, we definitely see that they feel disappointed when losing. Which is not really the behavior of gamblers who just think about entertaining themselves. A real gambler never seeks winning but pleasure and fun.
Don't invalidate the feeling of others, anyone can be disappointed but it doesn't change the fact it still fun while at the same time you feel excited, thrilled and sometimes nervous, that's how fun comes from. Of course, there's no way you feel sad when you win, that's why it's more fun when you win, lossing on the other hand might be disappointed but it doesn't mean you didn't feel fun while you are betting.