I've been waiting a while for a price drop, and the rebate just started today. See the Amazon chart for a comparison of models. Only $1 more than the non-Plus model, which are the only 2 models with a UV sanitizer.
What's in the Box
Toothbrush, Standard ProResults brush head, Compact ProResults brush head, three brush-head color-code rings, UV sanitizer, travel charger, two travel caps, and travel case.