This thread sounds a bit trollish, but I'll bite...
How are you planning on finding this wife. In a bar? On a website?
Let's leave culture differences out of it. When you are paying for a service, you get a nice submissive provider who supplies your every need, because you are paying for it. There's no difference whether it is here or Asia.
Transform that relationship into a real girlfriend or wife, and you now have the same relationship issues that any couple have - compatibility, background, expectations, spend vs. save, etc.
Are you planning on bringing the future wife here? Can she handle being in a community with no friends? Are you planning on moving there? Can you take it there?
Then bring cultural differences into it. We have a nuclear family view. Husband, wife, a couple of kids, dog, cat. Depending upon the culture, her view maybe that she is part of a large family, and you are to be absorbed. You may be expected to support a lot more than just you and her, both financially and also with your time. You may have much less privacy. Some people embrace that culture. Others want the Canadian style single family unit cocoon.
There are many success stories, but also some dramatic failures. The successes come from people who have spent time in their targeted culture, learnt the language, and gone into things with eyes wide open.