Too rich for my blood, I could probably make the same item out of luxen stars (ledsupply.com) and some time. They are getting a premium for those leds, the average cost for the leds a piece is about $6.25 ea.
However with that said, i am interested in the Dually, those are pretty cool and would make great reverse lights.
UPDATE: So what is the cost of the pair of dually's with the flood option. the rigid cost is $200.00 would be interested if we could get them for $180.00 shipped.