yeah, I think all that extra stuff is supposed to make it easier, or something. If you were going to play it The Way It Was Meant To Be Played™, you'd also need that iPhone/Pad game, the books, Razer™ gaming gear, Tali love pillow, Kingdoms of Amalur Reckoning demo, that iPhone/Pad Codex app, Kinect™, Mass Effect 3 Pre-order at Gamestop®, Amazon.com®, and Best Buy®, Taco Bell, Mountain Dew, Stride, Mass Effect 3 Collector's Edition Prima Official Game Guide, and the Mass Effect 3 Collector's Edition.
At least with ME2 the only content that mattered, and that's stretching it a bit thin too, was the Zaeed mission you got for buying it at launch. Everyone else were unnecessary extras like a scouter for Shepard.