I started pvp at lv 50 about 3 days ago, and yeah at first i tought * CRAP!! * but than, i realized.... yes you have the " chance " but still u get the commendations, and those you can exchange for the same item that you wanted to drop from that bag, but u have to open about 9 bags ( abou 3 commendations per bag ) and than you get your Item =)