Pictures only go so far, but it looks OK (I like the black; I had the same one). Price seems pretty good but you need to see what "cosmetic damage" means; you might have some wiggle room.
It never hurts to go look at it, but email him first with some questions beforehand.
I looked up my email I sent the prior owner of mine before I went to look at it:
"If you could answer these questions for me, that would be great:
(1) How are the condition of the tires? (Ex: Dry-rot, worn treads, flat spots, etc.)
(2) How was it ridden? (ex: Tear-assing around on highways, racing, or gentle/moderate).
(3) When was it ridden last?
(4) When did it receive its last oil change?
(5) Any other service performed (followed manufacturer recommended service intervals; received its first service at the recommended time; anything replaced/damaged during its life; any other service)?
(6) Why are you selling it?
(7) Any modifications?
(8) Is there anything, anything at all, not previously disclosed that would compromise the rider's safety?
(9) How's the paint? Nicks; scratches; dents; rust anywhere on the bike?
(10) Any prior owners?
(11) Overall, how did you enjoy the bike during the time of your ownership? Would you purchase it again?
(12) Was it ever dumped/laid-down?"
The owner should never
have a problem answering these questions (if they do, that's when you run). He's supposed to want to sell it, after all. Also, ask for the VIN. You can get an exact amount on what you'll pay for insurance (the insurance companies go by the VIN; they may have multiple codes for each bike and there may be slight price differences between them) and, most importantly, you can spend a few bucks ($2-$5) and run the VIN online to make sure it has never been in an accident, stolen, etc.
If you decide to go look at it, go through this several times beforehand and make yourself up a checklist: