Personally I really like NFL Game Pass to watch every Bills game, plus all of my fantasy team. The condensed games play in about 45 minutes so it's more like an episode of television, which I like because I always listen to the games on the radio (Bills App.) and know the outcome.
As someone who only streams Netflix, Amazon Prime and Hulu, and uses a TV antenna for NBC, CBS, ABC and Fox, it fits my spending preference. I would like the luxury of cable but it works for me for now.
If you wouldn't actually go back and catch each Bills game plus other teams and fantasy players, it probably won't be worth it. But you get all 250+ games for $100 so it's pennies if you watch multiple games every week.