Palmero,
We have the same delimma, whether going to HK or staying at US. but we have to make decision in next couple of days, but overall, I think overall, we have to sacrifice if moving to HK unless you have a big bump on your salary. The only benefit we can see is that up potential and close to mainland china. But the first factor is only a potential and it depends on individual's circumstances.
Everyone here is so helpful, that is nice.