Mines on 190k, she leaks.
She leaks through the sunroof
She leaks oil out of the transfer box
She leaks oil into the injector harness
She leaks coolant (somewhere - Probably the head gasket!)
She leaked PAS fluid all over the drive
She currently leaks ACE fluid
In her spare time I think that
She leaks fuel out of the regulator thingy
She leaks oil out of the gearbox
She leaks oil out of the engine.
She also rusts
She rusts on the window tops
She rusts in the rear chassis
She rusts at the bottom of the drivers door
She rusts just above the Windscreen
When she isn't doing these leisurely things, parts of her just break.
Like the rear wiper arm or the fuel gauge sensor etc etc
But I love her dearly
At 170k, it boils down to 3 things - previous maintenance, price, what you're willing to fork out on (in money and time)
Personally I wouldn't want to spend much over a 2k for one with that many miles on it - well, unless she had 5 brand new tyres on her!