Today's New York Times tested wild salmon, sold for up to $29 a pound, from eight different fish stores in Manhattan. It reports that less than 25% of all the salmon tested was actually wild. The rest was farm-raised, which goes for half the price when the seller is honest.
That means that the vast majority of people who buy wild salmon in New York get the psychic benefit of believing they are eating something even better than than "ordinary" salmon. But it also means that they're being deceived out of their money.
PS do you know why farm-raised salmon is such a lovely red? It's artificially colored. But the color makes us think it's fresher, and thinking it's fresher makes us thing it tastes better. So it does.
PPS yes, I know that's an Atlantic not a Pacific salmon to the left. Just testing your fish skills.