Re: Those in large contry houses...
I live in a small market town just outside of Norwich (10 minutes walk and I'm in the country side) and I nominally have a 50 Mbs connection though I find I normally run at about 52-54. Admittedly I don't live in an isolated "large country house".
I know the more isolated rural areas can be horrible for broadband. But I think people who choose to live there as a lifestyle choice should see this as way to drop out of the (digital) rat race,
One thing I find amusing is people who chose to move to rural locations and then complain about things like the noise from animals and church bells and complain about the 'agricultural' smell we get at certain times of year, I think slow broadband in rural areas is on par with that But I know and accept that people who run rural businesses find the situation very frustrating.
For me broadband is on par with utilities like electric/gas/water etc. Essential, but not the same as having savings, car, mobile etc.