Besides, people still fly with whomever has the cheapest ticket.
I was bored today and called many family and friends on the West coast and asked about trips to Hawaii and specifically asked about airlines. In every case, they said they flew the airline that had the cheapest ticket, many cases in F.
It appears that vacations start upon arrival.
Not sure what yield management has to do with the discussion? Hawaiian does in fact enjoy a strong marketing advantage, but no question about it, fare wars lower everyone's yield. The last comment is wrong. Hawaiian carries a lot of passengers because they are "Hawaiian", but they do have to remain competitive pricing wise. That said, I saw the figures published somewhere, the average yield per ticket was higher on Hawaiian than any other carrier to Hawaii, not by much, but they do get a premium.