couple of years ago my family set up a fantasy league that I DID participate in. For what it's worth, I think I came in dead last. I can't stop myself from drafting Rams.
I know people who watch ONLY because of Fantasy Football.. and I don't get that. Like you, NOT criticizing it IN THE LEAST... it's just not me.
MOST people, however, love the game AND fantasy football... and this much is for SURE... if you're very involved in fantasy football you certainly are better up to date on players and stats.