This is a lot like the fat side up/down, the foil/no foil controversy. And I am very biased on this issue as you might of guessed from by signature. My wife's family commercial fishes wild fish. My oldest son paid his way through college commercial fishing wild salmon. We have laws prohibiting fish farming for fear the inevitable escapement will dilute our wild stock's gene pool.
Having said all that, eat what you like. AND you are always going to see fresh wild salmon only once or twice a year because their life cycle only brings them in once a year. A large part of the popularity of farmed fish is the year round availability of fresh fish.
I'm luck to live in the state that harvests more seafood than any other. We eat what's in season for the most part.
Uncle Al if you're cravin' a slab of fresh salmon, grab a farmed fish and enjoy.
(Griff steps off soapbox.)
Friends don't let friends eat farmed fish.
"People sleep peacefully in their beds at night only because rough men stand ready to visit violence on those who would do them harm."