I paid $12,000 for my 1999 black GTI, with only 92,XXXkms. Here in adelaide there are a few GTi's for sale, mainly silver. But I always wanted a black one. The other black ones I found were around $14 - $15,XXX with average 150,XXXkms or so. I got a full RAA check on the car and nothing is wrong other than mine needs a service (booked for next week) so I'm not fussed, and I'm happy.
As long as your happy, thats all that counts.
Thats my opinion