I only did my level one cert. Heck that was $40.00 per launch. built a few, but I had a 1/4 scale patriot and a maximum alt min diameter that would go to about 6k. Long trek to get it back every time.
I still go to the launches and volunteer as the RSO and the LCO. I love the sport, but I decided I wanted to control things a bit.
I am part of UROC here in Utah, we have a range south of the Tooele Army Depot with a standing 10k clearance.
Fun Stuff
Tom