I will agree that if something tastes good, or bad for that matter, I don't care where it comes from either. I base my tastes based on the same. That said, I would challenge you to do your own comparing of the tastes of like seafoods, from cold and warm waters and be your own judge.
Cold water generally yields seafood that is more oily/fatty that provide more taste and tenderness IMHO. I also understand that foods that folks grew up on regardless of locale, tend to become beloved whether they are 'good' or not.
Cases in point... I like the same fresh water trout I catch in the winter/spring much more than when the lakes/rivers warm up in the summer. They lose flavor and become a bit muddy tasting.
I like the pacific wild caught salmon vs. atlantic (especially farm raised) salmon also from warmer waters.
I like Maine Lobsters far better than Florida (Spiny) lobsters.
Funny why the cold water seafoods generally cost more as well. :confused3: