Correct. Copper is relatively cheap, abundant an very easy to work with. Gold is very easy to work with, but extremely expensive. I think if gold was as chea

Correct. Copper is relatively cheap, abundant an very easy to work with. Gold is very easy to work with, but extremely expensive. I think if gold was as cheap and abundant as copper, it would be the go to metal due to corrosion problems other metals have. Silver is also expensive and I think harder to work with then copper. Aluminum, I would think it is harder to work with, but seems the article talks a lot about aluminum. Harder to work with equates to costing more $ for manufacturing.