Why would anyone buy a car with 90,000 miles on it anyway? At that mileage
even conventional cars are often in need of costly repairs.
such as drive train and engine.

Only if they've been abused. If you can't get a car to do at least 200K
without needing major repairs, you are doing something wrong. This is one
reason I don't buy used. Too many people abuse cars to the point where they
are worthless with as little as 90,000 miles on them. Sad, really. -Dave