Warranties and service contracts are usually where the money is with products like this. The good thing is Virtra is staying ahead of the game by upgrading their system and adding new features that existing customers can upgrade to. At least the margins are better.
STOC II Announcement UPDATE: (Update posted 11/06/08)
Due to the length of the proposal evaluation process, the anticipated award date is now January 2009. Industry is encouraged to periodically check this website for any future updates pertaining to the award status of STOC II.