In case you still need incentive to check it out, Amazon is currently offering a huge discount on the Halo 5: Guardians Limited Edition, bringing it down to just under $39. That's compared to the Limited Edition's usual $100 price point, which means a discount of more than $60 total.
In case you're unfamiliar, the Halo 5 Limited Edition includes the full game, a Warzone REW bundle, an Xbox Live 14-day trial, Halo: The Fall of Reach animated series, and a set of dossiers on each in-game team. All of this is packaged in a unique steel book, which also holds a Metal Earth Guardian model.
In addition, if you're up for spending more, Amazon also has the Limited Collector's Edition discounted to just $68, shaving an insane $182 off of its usual $250 price. The Limited Collector's Edition includes everything from the Limited Edition, plus limited edition statue of Spartan Locke and Master Chief.