Yeah, sports can lift you up and even define whole stretches of your life, like that 2007-08 Capitals season which was even better and more memorable than this championship season. But they can get you down, too. One reason I don't really like football is that I'd be miserable all the time.
Also I came to hate it when I/because I played it. One reason I really wouldn't want to work in a record store, as much as I wanted to when I was young.