How did we come to invest the equivalent value of a brand-new small car for such an apparently insignificant part?
Because LARP arrows place different, higher demands than archery arrows. In addition, the nocks available up to then caused a relatively strong strain on the ball of the hand (sharp edge) and bow string.
In archery, arrows are shot on target disks where they are to get stuck. LARP arrows, however, are designed to be shot at persons and bounce off the target more or less. Therefore the customary, mostly tapered nocks represent a risk which needed to be eliminated.