Ground zeros is less than two hours. Infamous is every bit as long as any Gears, God of War, Uncharted, or Halo based on the main story alone. Also SS warrents two playthroughs and got a day one 5 hour side content patch for free.
How is this even a topic? Case closed
This guy gets it. Having at least a 10 hour campaign along with everything else is not even close to ground zeroes.