While there are certain perks i.e. coupons, discounts for one car insurance company... the choice is obviously yours to make.
Bottom line, the NRA has been defending our second amendment rights for a long time now. The more members, the more powerful the group. I just joined not too long ago after years of debating. I get a (very educational) magazine and just the pride of being a member of the NRA. I also get the national gun news via email and Youtube, which tells me what the biased media does not.