Having had the pleasure of shopping in western alaska, i can confirm that shit is expensive as hell.  But its not just perishables.  Everything is expensive.  It aint cheap to ship shit out there.  And when you get to the real bumfuck shit holes, like kotzebue, hooper bay etc, the fresh produce and meat selection is absolutely terrible.  Of course when you live out there, no real need to buy meat at the grocery store.  Even aside from good stuff like caribou, moose and fish that they have available to harvest, those motherfuckers will eat seals, whales etc.  But man, buying produce out there really sucks.