Bought my R32 GTR which had a fresh R34 motor and brand new GT3582R after searching for about a year. 1994 V-Spec II. Was a weekend track car that wasn't daily driven, but when I drove it, I drove it HARD! All fluids done when I first bought it and fresh Motul 300V every 3000KMs.
Didn't have a SINGLE problem even with all that abuse on the track, although it did have a Greddy oil cooler and all the usual oil mods like 8L sump, baffles etc.
Sold it a few months ago for my asking price of $26,000 to the first person to see the car.
This shows that a good GTR is still easily worth $20,000, or even $25,000!