i have a 2001 with just under 10k miles. completely stock except for hawke electronic chain oiler.
i've ridden sportbikes for 35+ years, had all the italian exotics, and all the jap hi-perf bikes.
there is nothing that compares, nothing. the bike looks big, but feels light once you are above walking speed. it is so well balanced that when i am in stop and go traffic i never put my feet down. aerodynamically it is without a doubt the most comfortable sport bike, the faster you go the more stable it is because it tends to hold the front wheel down---big difference between other sportbikes that start to get a light front wheel at high speed.
one of the best headlight systems on any bike.
if you are young you might not be able to afford the insurance.
suggest buying a new one only. the bike is such a rush that used ones will usually be ridden pretty hard. it is a little hard on the rear tire but i'm just about ready to replace the 2nd tire now, because i don't hotdog it too much. i wish it had a bigger chain (comes stock with 530).
it is not a bike for novices, very easy to get way over your head on the bike due to fast build up of speed---60 to over 100mph in maybe 5 secs. very easy to kill yourself. understand panic stopping and know what counter-steering is---otherwise you will be in trouble.
good luck, wear a helmet and real protective clothing.
www.hayabusa.org