I looked this up and this appears to be a little more elaborate than I initially thought.
My comment was based upon thinking that the light would be something that was manufactured, either in house or outsourced and then it would have to be attached using labor from the factory and then on top of that there are still the licensing fees to account for.
Either way its not something that is going to be "a few extra cents in manufacturing costs"
Here is the
kickstarter page for more details.