I bought it sight unseen. Worst case; if it was a lemon - breaking it for parts would more than cover the cost. So couldn't really lose.
I had a budget put aside for remedial things. It may be a Lexus - but it isn't immortal. :)
If I'm gong to use a car - I like things to be put right. The replacement driver's mirror was about £60 from a scrappy.
Also - the car is too good to be consigned to be broken up.