A good friend of mine said it better than I could:
"This is not about "need." I don't need to prove that I need this right anymore than you need to prove that you need the right to free speech, or equal protection under the law, or due process, or any of the rest of it.
Where I live is actually a relatively safe place to be. Not much in the way of violent crime happens here, and in fact, I can't think of a single homicide in this county since I moved here 15 years ago. Co-incidentally, this rural county likely has a very high rate of gun ownership. I own guns not because I'm afraid of my neighbors, but because I think that exercising all the rights that I have is an important thing to do, and I enjoy shooting as a hobby, and hunting, too. I don't have to prove to your standards that I "need" and AR15 or a pistol any more than I have to prove that I "need" to own several kayaks and a canoe, or an old Mercedes that almost never gets driven, or that I "need" to have the right to free speech, association, or religion. None of that stuff is subject to the approval or politicians or bureaucrats, for you or for me."