Why? Seriously, why? Is your life different today than it was yesterday? Does other people accomplishing something reflect on you just because you live in the same general geographic area?
It's called being part of something bigger. Sports bring together people of all races, religions, political views, classes, etc. It creates a bond between strangers that would otherwise not be there. There aren't many things that can do that.
It is fun to root and cheer for something for years and to finally be able to witness the highest goal that is achievable is simply fun and emotional. To know how hard those guys work to get there and see them finally reach the goal that they have been dreaming of since they were a child playing sports with their buddies in the neighborhood.
I have memories of this past month hanging out with buddies and family that we otherwise wouldn't have had a reason to gather for, that will be with me the rest of my life. I remember exactly where I was when the Caps won 2 years ago and it's etched in my mind as one of those memories I will never forget. Similar to being on many of my vacations that I can still walk through in my head, that happened 15+ years ago.
It's pretty sad and pathetic that some people can't see that. It's okay to not like it yourself, but to not understand it is the pathetic and sad part.
But hey, have fun telling everyone how much you don't care about something by posting in a thread about it.