I'm still trying to decide if fishing is a sport, and I could be persuaded either way. There's real elements of skill involved, fierce competition, specialized techniques and equipment, big money and sponsorships. On the other hand, there's no high school or NCAA fishing teams (at least as far as I know) so it's kind of an insider's game. You don't have to be physically fit (outside of having enough muscle to lift the fish) and honestly -- couldn't I have a good day and feasibly do just as well as these guys?
I guess it all comes down to the audience. No one wants to watch someone else do something they could do just as well, and these events draw big crowds and lots of viewers. These people have to respect the talent and skill of the competitors, or they wouldn't watch. So the jury's still out.