For those of you who own electric toothbrush, would you say that they are worth the money? A lot of the quality ones are expensive, are they that much better than a regular manual toothbrush? This question leads into another one: What electric toothbrush can you recommend me? I'm looking for a cheap/quality electric toothbrush under $40 if possible. I saw a 2-pack Soniccare e770 or something at sam's club for $50 but the heads don't look like they can give me the ultimate clean.