I personally know few people who have Hong Kong on top of their list. Especially those with children want to leave as soon as possible, although this applies to the locals too!
Work brought us here, we have to be in Asia. Even with low taxes we could save much more in Europe because the cost of living there is much lower and of much better quality too.
Agree with you TO, there are so many much better places to live than Hong Kong. Lack of variety and affordable good food, shopping, schools, housing is enough to drive most people away long-term. Not to mention the pollution, and imho (autistic) crowds and
money-obsesed, shallow and spoilt people in certain circles.