Does the NFL even sell season highlights, let alone complete season game tapes? Are the highlights as homeristic as possible? Can you download or purchase NFL footage anywhere? I heard they were actually cutting back their staff at NFL Films.
My point? If thousands of people really want some footage that you own, I don't have a problem with you enforcing your copyright. But what if I still really want that footage? I'm willing to pay for all of it from around 1970 till now eventually but you won't let me.
Why do you zealously guard a copyright of footage you won't even sell to the highest bidder? Why bother? What money does the NFL gain by denying its fans the footage they crave?