Despite that healthy subscription base - a year's membership cost $50 when Elite launched in 2011 - Activision made its services free alongside the launch of Black Ops 2 in 2012. The publisher then brought many of Elite's features forward to the companion app released for Call of Duty: Ghosts, and it's now encouraging users to download that app, perchance for future Duties such as the one in development at Sledgehammer Games.
Activision has a FAQ detailing what this all means in greater detail. As a means of thanks to those who used the service, the publisher is doling out two hours of Double XP in Ghosts to members who've logged into Elite since January 1, 2014. It's an altogether subdued end to a service that was trumpeted as "Activision getting in front of our players and leading them into the future of connected entertainment."