said by milnoc :

there's no reason for satellite pirates to crack encryptions used by other service providers such as DirecTv and Star Choice unless those services started to provide channels that Dish and Bev simply can't acquire.

said by milnoc :

ExpressVu also has NFL Sunday Ticket. ExpressVu also has something that's difficult to obtain from US satellite companies: US network feeds in different time zones.

Since the introduction of DirecTv's P4 cards, I've yet to hear from a reliable source that they've been cracked. So for now, DirecTv could be considered an "artificially secure" service provider i.e. no valid reason to crack their current security... YET!