yes,LZ show the reasonable points, i gonna add some to decide whether you go
or no go:
can you get a really good offer?
there is something in china that you miss?(quality of life, friends, foods,
shopping)
if you have family, are you sure that your kids will receive a good
education?
i think most of them are before 35 ys, because their kids are less than a
school age, it is still possible to get back China.
me too, i m planning to get a job in China, but it seems not easy...