I think the idea is you keep the charger plugged in all the time (say, beside your bed) and when you go to sleep you just throw the phone on the charger. Seems kinda convenient to me.
Putting them everywhere, like the kitchen counter, home and office desks, car and bedside table would really lengthen the lives of phone batteries. If it really took only a second for people to do the equivalent of plugging in their phone they'd almost always leave them charging.