That's because we tend to keep the family car a lot longer than my runabouts which usually barely last a year, due to jrkitchings 2nd point.
I don't see it as infliction either. Each to his own though.
Stick it on the car. Our mx5 has one. Its ageless. Been on there since 2003 no one's vandalised the car yet. - apart from a packet of monster munch emptied onto the drivers seat...