There are a ton of industrial applications for which gold or silver would be extremely suitable but are too expensive. Gold has better electrical conductivity t

There are a ton of industrial applications for which gold or silver would be extremely suitable but are too expensive. Gold has better electrical conductivity than copper at surfaces due to corrosion resistance, and silver has better thermal and electrical conductivity in bulk, so in almost every industrial use of bulk copper it's being used as a cost-compromise over gold-plated silver.