When you purchase software, let's say some DAW application that costs $1,000 or so, you don't expect to open the box and find any material object with a value close to $1,000 contained inside. It's apparent to most people when they're opening up the box that the contents will probably be just a few dollars or so worth of plastic discs and paper booklets. What you're paying for is the development of the application, programming and other overhead costs at the software company, plus their profit margin.
I would argue that in some cases, the same is true when you're buying certain physical products, which is that you're paying for design and development and testing. If I opened up the most expensive piece of audio gear I ever bought, I wouldn't expect to find any magical semiconductors or fairy dust or solid gold connectors. I'd expect to see a fairly normal circuit board, and better-than-average quality connectors and knobs, and a nice solid case, and that's it.
My big, heavy, solid Avalon compressor might feel like it's full of gold bullion and uranium, but I think they mainly just spent an extra couple bucks worth of aluminum for the case, and bought nice, big, solid knobs so it would give the impression that what was inside was really extraordinary.