Alaska has generally two categories of places. Nome, mentioned in the URL, is a fly-in community that can receive barge shipments on the ocean during a short summer season. There is literally no road that goes there.

Not that cost of living is cheap in the rest of Alaska but the fly-in dependent communities are a whole other thing than the places that have a road ultimately connected to the Yukon, BC and the rest of continental north america by road.

The transport costs to get just about anything to the fly in communities is similar to Nunavut. Plenty of examples in Canadian media of $29 bottles of orange juice and similar.