Vibrating toothbrushes

So what is it about these new fangled vibrating toothbrushes anyway? I got one this Christmas in my stocking, and for the last couple of days I've been trying to use the thing. What are you suppose to do; stick it in your mouth and let the vibrating bristles clean your teeth? It sounds like I have a mouthful of bees in there, and if I brush like I normally would, the vibration doesn't seem to be worth its expense. I've tried just moving the brush slowly and lightly over my teeth and gum edges, trying to take advantage of what I think it's suppose to do. But I can't seem to resist the urge to work the brush like I've always done, and my teeth feel funny afterward if I don't.

It didn't come with instructions, not anything like, "...brush gently but firmly, maximizing the vibration and making sure to move the brush over the gum line...' or with an assuring: "If your teeth feel funny afterward don't worry; it's a sign that you are using the brush in the way it was designed to be used."

Do these new fangled toothbrushes work better than the old fashioned wrist action ones do? Am I missing something crucial that everyone else knows, and probably read from the instructions on the earlier model's packaging, or from a bulletin sent out by The Dental Association of America? Or are they just an expensive fad, banking on people's beliefs that new and fangled must be better, and their desire to have the brightest and whitest smile they possibly can have?

The Christmas before this last, I got a toothbrush that played "Rock & Roll All Night" when I pressed it against my teeth. I'm thinking that at least a swarm of bees is better than having the band 'Kiss' in my mouth! LOL