Board Thread:Questions and Answers/@comment-49.144.57.173-20140318211247/@comment-89.69.142.126-20141231165323

C933103 wrote: Kirito ask the one in charge of this to let him keep it and in exchange he provide information related to the incident to them, as drawn in Extra Edition. Yes, that. Add to it the fact that he was the one who ended up clearing the game, and he got enough friendship points that the officials let him have his NerveGear.

In the first place, NerveGear had been deemed illegal because it was too risky to use, not because it was some tool of mass destruction. So with all Kirito did, there really wasn't a reason for them not to let him keep it. Not to mention that after it all he kept in contact with Kikuoka and even investigated a game (GGO) for them, and as NerveGear allows for higher reaction speeds (higher immersion compared to Amuspheres), yeah.