[Scythels]

Brightcolors, the materials do not dictate the price of a lens.  If this lens were made just of BK7 you could make all of the optics for $200 or so.  LaSF materials or glasses to the left of BK7 will drive up the cost, as will aspheres, but there are mechanical difficulties to consider - centering such a beast will be monstrously difficult and will be a huge driving factor on the price.  There is also the name-your-price aspect, as it is the only 11mm available.