I'm looking for a good hybrid bike for under $500 so I've been browsing my local Craigslist for options.

I found someone selling a 2013 Trek FX 7.3 used for $500. The pictures of the bike look clean (bike looks brand new) & the ad description says: "20" Trek 7.3 FX fitness bicycle. Includes Bontrager Trip 5W computer, Bontrager Bar ends, Bontrager bottle cages with bottles, and two spare tubes. Ridden very little and well maintained.".

Is $500 a fair price for this? Should I try to talk him down to a certain amount?