I agree that industry use creates a price floor, but that might be much lower than what the price is today. I.e if suddenly everyone lost faith in gold as a carrier of value, so everyone who keeps gold just as a passive keeper of value started selling it off, then we would get a new market clearing price which represents golds 'real value'. I have no clue what this would be, but it is certainly not obvious to me that it's close to today's price.