I'm actually a bit more engaged with this season than the past few, but I'm really in the same boat.
After Peyton retired, I came to realize that I no longer belonged to any NFL tribe. I couldn't find any compelling reason to root for any team or player over another.
My wife died, and after that so many sports we had enjoyed together immediately--and to my surprise, having been a fan for years before meeting her--lost meaning: golf, football, PBR, NASCAR, etc.
I came to a similar perspective: these things just aren't that important in life. They become special because of the people, not the competition. Nowdays, I can't imagine how I ever had time to watch so much sports!
The Vols are my only tribe now, football and basketball. But I prefer to watch the football on replay online (cut the cable and didn't replace it---300 channels of stuff that took my time but left me little in exchange for it).
My life ultimately (hopefully) means more than entertainment. And life is always slipping away. If I was sharing those games with some special person, they would certainly mean more. But I have x-years left to accomplish whatever of lasting importance or good I can. If I have to choose on a given Saturday, I will invest in the future rather than indulge the past.
As much fun as it is to be a Vols fan... I'm confident heaven has never heard uttered the words, "Wonder how the Vols did down there Saturday?"