That all sounds really convincing but it's far from the truth.
There's another range in the area. It's about 20 miles farther and it doesn't require NRA membership. If my dues go up substantially where I shoot now, which I've been told they might, I'll be moving there. The fees are actually about $100 cheaper per year at the farther range when I include my required NRA membership. The range I shoot at now gets a kick back from the NRA for every member they sign up. I shoot where I do now only because it's closer. The other range is a much nicer facility with a longer rifle range.
Yes, I explored the NRA training, but like I said, I wasn't able to get the NRA representative interested in putting a class together. The guy wouldn't even return my phone calls or my email so I gave up. It's sort of like communicating with the NRA in general. They mostly don't communicate with you unless you are a life time member ($1500) or they want money.