All depends on how the bike has been taken care of, mileage really doesnt mean much if the bike has been properly serviced. If it runs good, looks good, stops good, and the price is right...GO FOR IT !!!
One of the most amusing things about my '00, is that people think I'm telling them a fib when I disclose the age of the bike.
Maybe the biggest thing to look out for is the ABS, is it working or not ?
Just ask alot of questions about the bike, clutch condition, shocks, electrical problems..all these issues should be disclosed by the present owner, and if it is a dealer bike, I would ask to talk with the previous owner.
Dont shy away if it needs a few service items, all bikes do at one time or another, and ALL the advice you need can be found here !!!