There was a long discussion on unFASTrowBOATS.com on this subject. There were a few members picking up the cheap Chinese imitations of the Honda EU2000i for a couple hundred bucks on eBay. (hmmm, irony?? )
I, and about 10 of my friends all have the Honda EU2000i, and we all LOVE them. They are small, dependable, QUIET, and overall a very good package. Expect to pay between $890 and $990 for a new one.