coming from a city that has a whole section devote to the tool and die / tool and mold area, his figures aren't that off (still high though).... a mold will cost some good US (around 5K or more) money per mold depending on the size and complexity of it... now figure in you'll need 2 molds per piece (left/right) and there are far more than one piece in these lights. Each light is a different mold, the lens is a different mold, the mirror part is a different mold (you get the picture)... now these are prices for high quality reusable molds... you'll get hundreds thousands of parts before needing to scrap the mold... you can build lower quality molds for much less of a price but you get just that, a lower quality part and far fewer pieces out of the same mold.... for instance a fiberglass mold will only yield you about 20-30 parts before needing to get scrapped. there are also ways to cut prices by incorporating multiple pieces in one mold but then you end up with injection marks and gates - kinda like all the little pieces to a model car are kept together by 1 skeleton piece of plastic then you end up with all these little plastic nibbles on the pieces.