I would think that after significant initial sales - like mine and supported by the affectionado and intelligencia, who appreciated the great technology and possibilities, that the sales slowed quickly with the advent of the locked down and out release of 4.3 which quickly was publicized. [I came from a wide open google nexus and am very disappointed as to how to deal with the after sales restrictions placed on the S4.] I understand the need to displace BB in the secure market but it could have been possible for Samsung to branch consumer and secure and allow the 'players' joy and the Secure assurance. It could have been both, not just one. Knox will be Samsungs hard knocks.