Even if it doesn't become popular for civilian use because of the overwhelming popularity of GPS software and hardware, precise location fixes for military purposes is a no-brainer in 2014.
E.g., Imagine every solider fitted with a receiver/transmitter so that their location is known with a resolution of a few feet. Think that'll make it easier to save the wounded during operations?
It's supposed to cost $250 million (approx $25 million per year since it lasts 10 years). Cost seems wildy reasonable considering just the military benefits.