for my money, I would buy the latest model I could.
Are you looking for a touring (Narrower rear tyre, instruments on the fuel tank, hard bags)?
Or a Roadster with ABS and black (Mostly) and 2010 onwards.
Classics and Standards are no longer made but good examples of both can be found.
If the newer is not in our budget try or 2009 onwards as most of the upgrades have been done.
price for anything decent is going to be starting from around 9-10,000 for a 2004/5 model.
oh year there are two engine colours too - Silver and Black Silver is the first of the 2004 generally.