Then the restaurants and their staff should just not show the game, if they're not comfortable with having table campers. So, are you saying, regardless of the quality of service, we should tip better just because they're not used to people just waiting around to watch the game.
The math does add up if you figure that with 4x the time means I'd order 4x the beer. What service am I getting that I normally wouldn't have. I drink, they fill up my cup, rinse repeat. Why should they expect the 15% just for me being there?