RE: Why I may not join the AMA
First and foremost, the AMA is insurance. Insurance for me, insurance for the club, insurance for the land owner where we fly. Typically without AMA insurance, you can't fly with most clubs in the US.
Fortunately, the AMA is not only about insurance. Their participation has secured frequencies for us to fly, assistance in obtaining flying sites, and more importantly, a voice for modelers as a whole in government and the for the hobby in general. Now you may not like the direction they are going at times, but I'm sure if enough members decided they were going down the wrong path, they would voice their opinions.