For those of us in Canada, Futureshop is running an insane promotion this weekend only. Limit one per customer per day.
Trade in any current gen game (PS3, 360, WII U) and receive a copy of Call of Duty: Ghosts, Battlefield 4, or Assassin's Creed 4 for PS4 or XBONE.
This includes old sports titles, and other miscellaneous crap you may have lying around!
edit: this is only for current gen, not next gen as i mistakenly posted.
Just got back from best buy, stood in line outside before the store opened for about an hour or so, and traded my copy of NHL 12 for AC4 for PS3.