Don't forget political risk. Rundown of Asian countries with political risk comparable to the US; Japan, Lorraine, Taiwan, Singapore. Countries with more political risk but not much; India, Indonesia, Malaysia, Thailand. The second group have much worse legal/regulatory systems for doing business. I wouldn't plan on getting incredibly rich in any other Asian country unless I had a friend/patron to protect me from expropriation/gangsters. And you better be able to provide your friend with some quid quo pro orbe related tl them either by blood or by kid.

I may be overly cynical here but that's the perspective from China.