Currently, the incentive is to be build not to last. There is an interesting documentary on this subject called "The light bulb conspiracy" http://www.youtube.c

Currently, the incentive is to be build not to last. There is an interesting documentary on this subject called "The light bulb conspiracy" http://www.youtube.com/watch?v=vfbbF3oxf-E http://www.youtube.com/watch?v=vfbbF3oxf-E