Why yes, that's exactly the point. You aren't giving them every last cent. This year the Bills are likely going to be on a channel I can watch 13-14 times this year. I'm not spending $300+ just to be able to watch the 3 or 4 games that won't be on local Boston TV.
Speaking of being money-grubbing pr*cks, season ticket holders (me) used to get free NFL+ in time to watch the preseason games. This year they waited unto after preseason to offer us a generous 40% off!!