To each their own. If I play poker (or Schafkopf) with friends, we write down, but never pay out. The fun of mocking the others and frustration is the same. Good for you, if you managed to stop before losing. Most don't. Former teammates used to boast with how much the won again, but never mentioned when they lost.
As for sports gambling, in particular, I have never understood it. Why the need to add excitement by betting if you enjoy the sport as it is? Or you don't, you don't have to watch it.
Gambling in general seems to be a basic need for many, still don't like it, especially the ubiquitous role it has nowadays. Gambling ads left and right, gambling mechanisms targetting kids and teenagers with their free2play-crap all over the place, an industry exploiting the young, weak and vulnerable. Know your limit my ass.