Pretty sure of yourself, aren't you? My Japanese wife and I have been married almost 12 years now and have two sons with dual citizenship. We've talked about it, but she currently has no desire to give up her Japanese citizenship even if she is living in the States.
Bottom line, it takes effort to be married to an American woman.
There's something about the tone of your post that tells me that would certainly be true in your case.
Bump.
--no particular reason...