Seems absurdly cheap to me for something that draws in customers effectively. You'll probably make back the money in a few hours, and the rest of the month will be profit.
700£/month would be an absolutely massive expense in my place, and there's essentially no chance we could afford it. We don't get much draw for sporting events, even the Superbowl or what have you.
That doesn't mean that everyone in the place during the Superbowl doesn't want it on, though.
So although it couldn't possibly pay for itself at my place, not having it would also cost us quite a lot when there are big games.
Wow, that's ridiculous. I can see why people are trying to find ways to get it cheaper.