The reason for the price being way higher is because people will pay for it.

True, but Jerry wrote it out once, he is not a fast food engine builder, he is a high performance LT500 Specialist (and other makes also) no one is forcing anyone to buy his products, he backs his work and products with fantastic customer service and dyno testing and testing and testing on these 25 year quads.
I can tell you for certain, no one is building a retiring fund on selling pipes for the LT500s.