This may feed-in to (if not nourish) quite a few threads here...
Somebody somewhere is doing a good job.
I recently received an e-mail from the Art Fund which contained their list of the top ten this and that. The topic they began with was 'The Top Ten Castles'. No doubt their choice is affected by the 'Art' on show and I am not so sure how anyone would score Dover on that point, but the Art Fund does not rate Dover Castle in it's top ten.
http://www.artfund.org/whatson/21277/top-ten-castles
I agree that £10 per annum for a family that frequents the Museum is not a great deal to ask, but I wonder too why such a thing has been slipped in. A bit of a PR slip there.