For football yes. You cut me, I'll bleed blue and orange. There were years I wasn't able to watch a game on tv---living in areas that would rather air CA or FL teams, for example. And I still wore my jersey on Sunday, and stuck close to the computer for updates... I was less than 6 months old when I went to my first Bronco game. I grew up teething on an "Orange Crush" teething ring.
I met Lyle Alzado and David Thompson (Nuggets) when I was 5...there was a MS read-a-thon (remember those?

) and I read enough to go to Casa Bonita (ask anyone where to take tourists in CO---Casa Bonita is on the list

) and met them. I was sooo excited about meeting Lyle Alzado--I had no clue who Mr. Thompson was.

Mr. Alzado lifted me up on stage, because the stairs were a bit high for me, and when we took our picture, he leaned down to be close to me.

I was so excited, and happy, to have met my idol. I felt betrayed when he became a Raider, I stopped watching football that year.
Hockey and baseball, I'm more, meh. I like the Rockies and Diamondbacks, the Avs and Coyotes. But I don't live and die with them. (mainly because I really only got to watch them when we went to the games....I have to battle DH to watch sports on tv, and battling to watch the Broncos was enough for me.)
Can't stand basketball.
Non-pro, well we have several here--the Suns and then a hockey team also. Have been to see both--the hockey match was actually less professional than a high school team.....