As someone who worked in a metal stamping job for 20 years, I can tell you that the cost of stamping parts ain't cheap. Depending on the size of the press, features, they can run from $250,000 to nearly a $1,000,000, or more. Then you have the cost of the dies necessary to make the part, again, not cheap. Once again, the price is determined by the die size, features. Then you have the cost for the material itself. A coil of steel is not cheap either.
Then you have the cost of labor added into the equation, transport charges for the raw and finished material and the finished part. No, it ain't a $10 to make those parts, it's probably in the hundreds of dollars.