I think Kitz is on the ball, also like minded posters. I have very little need for gob smacking speed, as I have what is a good line in comparison with estimates for line length and attenuation. Being retired and not a gamer I am not glued to the internet, so in a day the benefit in time saved in that day by having a superfast connection is abated.
OTOH, I do not think my daughter and her husband wastrels for having fibre. Much work for their employers, given their statuses, means some work is done at home, and they have children as well.
My other daughter, and her husband (who is highly skilled in IT) and tree offspring need the speed and bandwidth too.
I happened to remark to that son-i-l on monitoring programs, and he remarked to the effect that, whilst useful, too close attention might be a type of paranoia.
In all I suppose it's like driving: some put foot down to get their first, but often their leisurely friend is not far behind at the goal.
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I see that Dorset data includes Bounemouth and Poole, and think that might be misleading as their are other suppliers in such a large conurbation.