And one observation is the number of people straining to hear noise on the quiet line test so that they can report a fault in the hope of better broadband speeds might mean there is a higher fault call-out rate than in the days when the odd pop was irrelevant with voice.
Now it could be said Openreach should be maintaining lines to avoid this, but that again costs staff money/resources.
My dodgy maths make that less than £4 per week. Went for two coffees in town yesterday, cost £4 odd, yet many people visit the cafe daily. I think my line which I use daily is far better value than two coffees weekly ... and I daresay the BT infrastructure costs rather more than an espresso machine