The cost of living in Hong Kong is mostly the same as London which is known as ridiculously expensive. It takes about HK$20k / month to rent a 1-room apartment which is even more than the average salary of a web developer (in contrast, the average salary in London is about £55k / annum, which is equivalent to HK$33k / month after tax, only in small cities the rent is affordable). The only pro about Hong Kong is its lower taxes but it is offset by much lower earning.
In Europe, I can earn the same amount of money while living at a place which is 50% cheaper to live, or earn double the amount I currently earn while living in a big city, with much more work-life balance, days off, etc.
Why do expats still come to this shit place?