All for the privilege of breathing crap air and being surrounded by 7 million Hong Kong Chinese who would rather you were not there.
Let's not forget schools where one basically has to bribe to get a child in. We are not talking about small amounts either. These bribes (excuse me... debentures) are similar to down payments on a home or purchasing a nice car.
Hong Kong is one of the most ridiculous places in all the world. The real estate is untouchable right now, and the ever present threat of more Mainland control casts a dark cloud over the place that makes the pollution look tame.
The third runway is a farce. It won't increase capacity much, if at all, unless the surrounding airspace gets fixed. It won't because that involves Mainland China and the military there. So that quick upgrade will not materialize. Airlines will struggle to grow and will be forced to accept middle of the night slots to add flights. That should be fun!!!