If the battery costs 75% of the car does it make sense to try to refurbish it? There are old model S cars on the road with half a million miles on and still usa

If the battery costs 75% of the car does it make sense to try to refurbish it? There are old model S cars on the road with half a million miles on and still usable range. After that kind of mileage I expect the rest of the car to be pretty worn too...