Daltera,
My family was pretty much in the same situation back around 96/1997. I was 12 years old back then and my parents debated/argued for a very long time. They ended up separating, my Dad and I moving to California and my Mom staying in HK as a music teacher. 10 years later, I am now 22 and just graduated from college. My parents are living good lifes in two different places, even though one makes way more money than the other. It really depends what kind of lifestyle you can accept, sharkfins rice or Wonton noodles, it's going to be a choice, for you and your family. I'm a youngster so my idea of a good life might be different than you and other people who has a family to consider. I am going back to Hong Kong to look for a job this summer even though I know i'll be making much less money than in Nor. Cal (silicon Valley). I wanted to go just becasue i wanted a change of lifestyle and i'm have nothing to worry about. I am just following my heart. It's risky but that's what my plan is.
HAVING said that, I am also very grateful to my family for bringing me over to the US where I definitly got a better education. Had i stayed in HK for school, i would probably not have that big a chnace of advancing before F.5. So i respect my parents for makign that decision and their sacrifice. I think the education aspect is the most certain of advantage that oversea has over HK.
Anywayz, I'm just a kid with very little experience in life so i don't mind if you don't take me seriously. It's a big deliema but i know that you'll be very careful with this decision and make the right choice for you and your family. =)