The post was more on search of eBay not specifically those two listings, but yeah for OEM lit's they can run anywhere from $800.00 to $2,000.00
Now those two links the chip and crack were to the underbody of the light which would not impact install or function of the light itself, so as long as they work and fit it would be a decent deal not a great deal. But there are great deals all the time out there if you search a bit.