Re-read his post. He stated his walking group was keeping up with the group ahead of them. No reason to let the lazy ones on the cart play through. Here in the U.S. we have too many people riding golf carts. Most of them desperately need to be walking to get back in to shape.

As to the original question, the problem with power kaddys is the weight of the battery. If you have to take the cart in and out of your vehicle watch out for lower back problems.