disc brakes are way better at stopping on bad weather.
it makes less noise than the regular rim brakes.
the only thing you change are the brake pads, which you wont need to do for a very long time.
rotor, if you ever change your rotor (disc) is only if you get a major accident, else those things will outlast 100+ times the brake pads, i can't ever see the day rotors ever getting worn out, like the ones on cars. LOL
