I found an article from 2018 claiming they where then worth £550m in tourism, against a cost of £50m, but who knows if that's true?
Is it them people come to see or their properties? I bet you could put a puppet of the Queen in a window in Windsor Castle and there'd still be the same number of tourists going to see it.
I just think we should suspend judgment on Boris until we have all the facts through an inquiry, police investigation, and parliamentary commission...then we should explode him.
also,
I'd like to be called Lord Poopy His Most Gloriously Excellent.