What kind of silly logic is this?
A product value is not defined by its cost to make it.
Bitcoin is very much supply:demand.
It's called emotional attachment, nobody said it is logical in any way. You spend X resources to obtain Y goods. Would you protect your involvement with Y goods by capturing any X resources with a lower value than that of Y goods?
Or better put: you are surclassed by cheap chinese workers that make your product cheaper. Do you continue to make your product in an expensive way, or do you start trading the cheaper version in your business process, assuming both products have the same quality, which for bitcoin is true.