I am a loyal NRA member, I contribute to the NRA-ILA, PVF and try to encourage as many people as I can to join. It is a simple matter of politics, with only about 5% of the estimated 80 million gun owners joining, the NRA is the strongest pro rkba organization in the US, but they are by no means invincible, and have to resort to direct mailing and the like to get as much support as possible. 4 million members gets us compromises and a "pick the battle" mentality. 80 million members would probably get a NFA, GCA, and 86' MGB repeal a small price to pay for some junk mail, or an e-mail to stop it. Gun folk tend to be a divided lot, and that hurts us, the Fudd and Mall Ninja camps squabble endlessly on just about every subject under the sun, all of the "hunter for AWB", "plinker against hunting", and "trap competitor for handgun licensing" not only give our enemies opportunities to turn us against each other, but play a big part in keeping pro-RKBA member numbers low, and in the end none of us would have any rights left. I do not agree with many of the NRA's actions, or their God guns and apple pie front, but it is the best we have, and if we all can come together we can stop the ever encroaching push to take our rights away, and maybe push back enough to get some that we lost.
We spend thousands on fiearms to protect us, but it only takes a minimum of $35 to protect our firearms.