I agree with the first part especially, for me, as it pertains to basketball. I grew up in Buffalo so I'm a die hard Bills fan because that's the home team. But I can't possibly have that same passion for any NBA team. There are certain players whose stories and/or games I may like. That's how I choose who to root for in basketball and make no apologies about this.
As a person who roots both ways, I think both have their advantages.
The thing I don't like is that bandwagon ish. That ride whoever's hot wave. Nah that's wack. Any player I'm feeling, I was feeling before they got to the league and I ride with them til the end. I'm still a die hard Vick and Tebow fan, I don't gaf.