Do you recall some legislation a few years ago that the NRA supported that would have effectively eliminated all other grass root gun rights organizations? There are groups out there working behind the scenes and the NRA seems to become pretty effective at taking ALL the credit. So much so that the SAF asked the courts to keep the NRA away from a case because they felt the NRA was trying to undermine the case.
While there is nothing "wrong" with other gun lobbying groups, such as GOA, and others, none of them possesses the political clout and muscle the NRA does, and most all of them never will. Mention all of them to Senators and Congressmen on Capitol Hill and they'll all tell you the NRA is who they respect, or in some cases fear, above all others.
That is not to say the NRA hasn't made some poor decisions or alliances in the past. But in this case it proves how the political partnership they struck up with Harry Reid has paid off. No lobbying group, gun or otherwise, is going to have a perfect track record when it comes to performance. But the NRA is head and shoulders above the rest. By not joining the NRA in favor of some other lesser powerful gun rights groups, gun owners are essentially "splitting the vote" much like Republicans did when they voted for Ross Perot in the 1992 elections. Or more recently all of the Ron Paul loons did by wasting their vote on him instead of Romney.
I don't agree with all the NRA does. But until another gun rights group comes along that packs more political muscle than they do, I'll keep sending them my money. This is a perfect reason as to why. This is yet another one we would have lost without the NRA.