SIVIR,
You need to run a cost of living survey to realise how much it will cost to live in Hong Kong. Yep 89,000HKD sounds good don't it, that's 11,500 USD per month!
Now lets run a comparison on USD costs. Fuel in USA 97c/l HKG 2.29c/l. Milk USA$1.00/l, HKG $2.56/l. Rent for 1 bedroom apartment in California $1000 p/m, Tung Chung 2000 p/m. If you want a quality of life indicator then you need to reduce the salary 60%. I won't even start the comparison if you have a family, I might have to reduce the salary another 10%.
$4600USD p/m sound good now? Join up, your closest friend will be the managers who will pat you on the back for increasing their bonuses.