I made 500odd bhp out of a 126k mile supra with the original engine and its still doing trackdays, however high mileage is hard to shift to the majority of people with the lack of knowledge that if you look after things they last.
I went for a low mileage one because id never had anything like this, id always owned 100k plus cars, just my preference now....
I suppose there's the same argument for imports as someone mentioned earlier about the high milers, if you dont have a good budget then you can pick up a cheaper import but still own a Z