I think that the practical inefficiency of Buckingham Palace makes spending large sums of money to maintain it as a royal residence of doubtful benefit. The present royal family and the previous king and queen all admitted to disliking the palace. It might be better to convert it into a showpiece heritage site that includes art galleries and museum pieces with facilities for state and even non-state banquets. It could still keep the balcony for display at royal weddings, jubilees, christenings and other public occasions. That way it would serve as an even greater tourist attraction while providing an impressive setting for entertaining foreign heads of state, Commonwealth Prime Ministers, etc.