Oh man, my father and I used to shoot model rockets off as a kid. I recall losing one on the roof of the local Middle School once and I thought it was the coolest ever.
I had made a few after getting into it from Boy Scouts, and when my time came to engage in the yearly tradition of high school physics kids launching rockets in the football field, instead of making a new one, I just brought my Big Bertha from home. I hadn't launched it yet. It used one massive "E" engine. First launch, dwarfing the launchpad, it exploded. AFAIK its battered fuselage was hung in the physics room until the teacher retired. Good times.
I remember lst century learning that the "c" rocket engines although the same size go way way higher and watching the rocket and parachute drip over the trees never to be found again.
That and "Hobby Wick" which ensured takeoff because those electric fired ignitors hardly ever worked right..
This price is a little steep, in my opinion.