The Sonicare Elite 7800 and every other toothbrush needs to be taken care of in a certain way. Regardless of whether it is a cheaper brush, like a Crest Extender toothbrush, it is important that you make certain you rinse and dry the brush before putting it away. There are several reasons for this.
First and foremost, the bristles of all toothbrushes serve as a perfect breeding ground for germs and algae, should the brush be left moist when you have finished brushing. Algae, surprisingly enough, is a problem as the moist bristles and the light in the bathroom provide everything it needs to begin to grow. This is why there is a rather "lake water" smell to brushes that have been left uncleaned and moist. This problem can be avoided by simply taking the time to dry the brush.
In addition to this, Sonicare Elite 7800 as well as any other toothbrush will last a lot longer if this care is taken. Even with brushing at least two times a day, the bristles will be more durable than if you did not take the proper care with your brushes. While brushes like the Crest Extender toothbrush can be replaced easily, replacement brush heads for electric brushes are far more expensive. With the proper care, you should be able to have your brushes last a long time, no matter what type they are.