I have a Sonicare that I've had for years and years. I absolutely love it. When I bought it electric toothbrushes were still "novelty" and I paid something close to $200.00 for mine. The prices have come down considerably since then.
One thing to keep in mind with electric toothbrushes, is that you still have to brush your teeth properly to prevent gum diseaase and that if you don't, you can do much more damage to your teeth and gums with an electric toothbrush, so learn the proper techque to brushing before you go and invest in an electric toothbrush.
Also an electric toothbrush does not take away the need to floss your teeth.
And it's bad to brush your teeth for hours at a time like "Matthew McCounahey" does. Apparently he uses his Sonicare toothbrush and brushes his teeth up to 8 times per day for 20 and 40 minutes at a time. Sure he might have clean teeth, but over time like water on rocks, he is going to be wearing his teeth down and causing them more damage than good.