[PocketRocket]

Actually the waxing on a car is also to reduce air resistance and can result in a 2-3% difference in fuel economy as well. That is in addition to it's original purpose of warding off corrosion and protecting the paint from accelerated fading.

The oiling of compressed clay chips is often used to enhance their appearance for photographic purposes, but there is no reason to oil them before using them for their intended purpose. Generally chips will go from the box to the cage to the table in a casino. There's no stop along the way for a lube job.

Originally Posted by Kalimba

Probably for the "WOW!" factor. Just like waxing a new car right after you buy it. Sure it'll drive just the same without the wax, but, man, does it look nice with the wax!