NRA is the big, old dog in the yard with much bureaucratic bumbling. Years ago, I would get a notice to contact my elected officials about this or that vote. It came 2nd class mail and a day or more AFTER the vote. I complained. They took me off the mailing list! Friend, gunsmith lived about 2 miles away and continued to get the mailings and gave them to me... STUPID.
GOA and JPFO are smaller, better organized, and probably a better investment. Maybe someday big enough to be effective like the NRA... Tough call. The late Neal Knox "Hardcorps" remains a decent inside look at the NRA bureaucracy. Neal had the best connections. Lesser now. Spread the money around.
For a time I was NRA tv local producer. (They sent me a video tape and I put it on the local cable channel.) In one tape Marion Hammer told how she started the concealed carry movement in Florida and when it was "up and running" THEN the NRA showed up to help. I remember that. (And the NRA registered punk who was telling loudly that the Colt Commander had a steel frame and the Combat Commander had an alloy frame for sissy soldiers... he had one, he knew. Sounded wrong to me but the NRA put their [my] money behind this punk. I said nothing but when I got home I looked and he had it backward... He also spoke enthusiastically about his success with "amour..." ) If in my youth and ignorance I had not bought a life membership, I would have stopped renewing long ago...