I tried a couple of Kona Dew today

Kona Dew Plus $550
Kona Dew $430
Both 2010 models.
The seller told me that the difference is mostly on the brake system and the wheels. The Plus has a disk brakes with compatible tires and the other has regular tires

It is worth to spend more money for disk brakes (I am going to try to avoid going on the rain). The seller said that the disk brakes last longer, is that true?

Thanks