Keep in mind that although
Keep in mind that although the chemicals are inexpensive, the price includes the labor for applying. People don't work for free. This article should make note of the labor and time needed to apply, especially if it takes 3 coats on the interior and exterior. That's probably around a half to full days work. Dealerships have overhead. Of course the consumer if more than able to purchase from eBay and apply themselves, however most dealers have someone that has attended a class in the detail department for proper application of these chemicals.