I know what you mean about a “track” car that doesn’t get used at the track due to the car’s cost.
My own experience is the car is still quite fun when used 6-7/10 on the street. The experience is really special each time you get behind the wheel. The way the car shakes, the sharp response, the shiny paint, the exhaust note, etc, make the drive quite fun – even when not at the track.
If you can swing it, get it. Not many car quite like the GT4.