Is it worth it to root for sports teams? I feel great when my teams win, but lousy when they lose. And since, by definition, there can only be one champion in each sports league, the odds are always stacked against us fans. I'm fortunate, in that some of the teams that I follow (Lakers, Angels, Rams) have won championships in the past 5 years. On the other hand, other teams that I follow (Clippers, Dodgers, Raiders, UCLA, Stanford) haven't won a championship in the big three sports (basketball, football, baseball) in over a decade. And LA sports fans are lucky; imagine the plight of Philadelphia fans who are so sore about their lack of championships that they hurl batteries at their own team's players, and once booed Santa Claus at an Eagles game.
On the other hand, when I play sports, I feel happy whether we win or lose. I'll let you draw your own conclusions.