Buying fazer with high mileage

[the_quick]

Hi guys, I'm new here. Just passed my mod2 and looking for the bike (yes don't own fazer yes, hope it is ok to ask you question about one).

Anyway I have spotted Fazer 2003 with 85k miles on the clock. For a grand.
Here is original description from the seller:
This is a 2003 Yamaha Fazer 600 in Silver with only 1 owner from new ( a Policeman ) It has done 85,000 miles but the owner looked after it with regular servicing.
It comes with a Datatool Alarm System 3 with Certificate and also comes with both Genuine Yamaha Keys with code tag. Service History up to 77,000 miles.
New Piston Rings fitted at 66,548 miles.
It has 2 x Datatool Alarm Fobs and it has a Scottoiler fitted.
There are Engine Crash bars too.
Mot Certificates from 2007 to 2013.
Mot untill March 31st 2013
Over 40 various bills for servicing works.
Owners Manual.

This is a lot of miles for a bike I guess. I did have a look, the black paint on the engine is piling off, crash bars are bit rusty (under the paint) but main frame looks OK. No scratches that I could see.
Engine starts on cold with out a problem, no strange noises etc. Tyres, sprockets and chain has still plenty of life in them. I think downpipes are stainless and they look really well/

So really looking for advice, is 85000 miles to much? Or shoul I buy it?

Here some pics