Unlike Activision's first-person shooter series, GTA is put on a pedestal. There's really no other series quite like it.
But veteran video games analyst Michael Pachter believes that dominance won't last forever.
Call of Duty is bigger, and GTA will not maintain its position as the worlds biggest mainstream franchise, he told IndustryGamers.
Eventually, Call of Duty may suffer from fatigue, and GTA could keep chugging along, but it will be 8 years before we can make that call."