I think that's beside the point. if you're going to spend that much for a charger and cable that should be really well designed and last a long time. Electrical tape leaves sticky residue quite easily and is pretty horrible after a not very long time.
To a point. Electrical tape doesn't do anything for a cable that is pulled 1/8" out of the brick and ruined internally (what has ultimately killed my 'zebra' taped up magsafe chargers).
Every laptop should ship with a charger and a roll of electrical tape.