[mman1506]

CIM's and other vex motors are pretty well sealed and hearty motors so they do not need a lot of care.

Banebot and Fisher price style motors tend to rust pretty easily in humid environments. They also do not like being dropped as thery will flex and the stator will hit the magnet often shattering it.

Brushless hobby motors tend to be higher quality motors and are usually anodized so they do not corrode easily. They often have small unprotected bearings that like to seize when they are not maintained properly.