I actually spend less by purchasing NFL Sunday Ticket than I would if I did not have ST and went to a sports bar every Sunday. We figured out it was something like $15-20 per week. Being able to DVR and watch them later is priceless!!
I agree that I woudl not pay for DirecTV if I had to pay for cable anyway. One of the advantages to home ownership, I guess.
My math came up with going to the bar as being cheaper. I spend about $15-$20 if I go to the bar, I spend between $5-$10 on beer and food at the supermarket if I am going to say at home and watch.
Plus I don't go to the bar for every game. Granted there are probably more Patriots games on in Albany than Fins game on in St L. But between the two Jets-Pats game, an odd Monday night/Sunday night game, the Patriots playing at a different time then the Jets and being the game carried or my visiting family (all in Pats country) I only wind up at the bar for about half the games anyway.