Yeah my 85 has 155k and rising. A lot of things are begining to show their age and I saw this as a chance to get a car that would be easier to fix up. But like you said, if it hasn't been taken care of I may be better off with the car I have. I have already done TONS of maintenance to my car but it still needs more...oh well. Here is what I have done so far:
Timing belt and tensioner,
water pump, CHTS, MAF, cam seals, all new belts,
radiator and bypass hoses,
all new 12 lifters, intake manifold gasket,
valve cover gaskets, new plugs wires, cap and rotor, (all Nissan Parts)
changed all the fluids in: transmission, differential, coolant, engine, etc. Rear hatch struts, all new front and rear brakes and front rotors,
new fan clutch, K&N Filter and 2.5 exhaust with a straight through muffler, new tires Fuzion ZRI's, new headliner, new windshield,
new headlight switch, and had to put pass side mirror on (thanks to a
F$%$ing deer).
All work was done by me except windshield, exhaust, and tires.
Maybe after that investment I don't think I could sell my car...lol.
Car still needs: New front struts (not bad I just want Tokico's),
steering rack and pump, probly new alternator (power steering leaked all over it. new carpet, new steering wheel, new front left fender, and i need to replace all vaccum hoses but i dreading changing those hoses under the dash.
So I guess I can't sell this car BUT I STILL WANT ANOTHER!!! WAAAAHHH!! LOL I also want a 240Z and a 280ZXT. I guess I need to play the lottery more often or invent something....crap i thought everything was gonna be GIVEN to me and i wouldnt have to work for it.....woe is me...lol
LaterZ.