Assassin's creed unity employee handbook (RSP:  ~$60)

Rise of the Tomb Raider guide book (RSP:  $39.99)

Call of duty ghosts guide (RSP:  $34.99)

Starcraft heart of the swarm guide (RSP:  $29.99)

$4 each @ Dollarama

Picked these up for my brother.  What a great deal!  There are a few more I've seen online, so I'm hoping I can find them eventually.

Most of them came with something.  The Tomb Raider book came with a keychain, one of the books came with some iron on patches, the starcraft one comes with some paper models...I don't think the unity one came with anything.