Our Honda Civic has done 42,000 km, but at the last service by our Honda dealer we were in formed that the brake pads and rotors needed replacing at a cost of $1000. When we complained that this cost would re-occur every two years or so they said this was standard. We are not happy customers.
42,000 km isn't many kilometres, but it isn't unusual for a car to need pads and rotors at that sort of mileage. It's worth doing your research on things like the brake life you could expect to get on a car before you buy it. That way you won't be in for a nasty shock later on.