What I never got about this myth is why people thought that the razors should cost more than the blades. The razor is molded plastic and the blades are a bit of

What I never got about this myth is why people thought that the razors should cost more than the blades. The razor is molded plastic and the blades are a bit of plastic holding a small bit of metal that are honed so they easily cut hair and have a hard time cutting skin. There's no reason to think that the plastic should cost more than the blades. My best guess as to why the blades are expensive would be to cover marketing costs and for patented technology.