Re coffee: I'm happy to agree to differ here - just a matter of taste I suppose . H&P have the raw ingredient and equipment but struggle on the delivery in my experience.
I wouldn't use a Costa either. We can make much better coffee at home and when out locally there is superb coffee available.
That all said, the point made by seeformiles is still valid. If enough people enjoy using the independents, as I do, then they shouldn't be threatened by a Costa.