Because they belong to the Monarchy.
not in the traditional sense, as we both agree.
The Monarchy themselves are a revenue source for the country, and it makes sense that they derive some income from their assets.
no, it doesn't "make sense". Since when is that adequate justification for laying out 85m?
so you can't argue it is overly excessive, given they are an asset belonging to the Monarchy.
yes, we can argue. If they don't have an absolute right to the revenue, why give them any of it?