Another argument to throw back at them would be that silicon is...

Another argument to throw back at them would be that silicon is not as "space efficient" as DSC.

Silicon panels need to mounted on a suitable surface, in many cases the available room for mounting them is limited.

Silicon panels are also quite heavy which limits them even further.

eg: I use a small campervan (pop-top Toyota Hiace), I have been looking into solar panels to top up the batteries when in the bush. For $500 I could buy a large, bulky panel which would need a mounting frame on the roof. It would require 5000mm x 5000mm of operating space (as well as storage space when in transit).

Alternatively using DSC, the entire roof could be generating power - no bulk, no storage, no repositioning, no weight.

Anything which applies to a hippy consumer trying to have fun in the bush applies tenfold to the military!

And this is just the start of it....