Aloha Kakau,
I recall on Aloha I used to collect from ITO-HNL-KOA mileage each segment in the past. Anyway the $38.50 inter-island is gone ( ITO and KOA was sold out early on).
4 segments inter-island at $73 per segment will be as near $300. I'm holding a $154 fare ITO-LAX on 12/8 and might handle some light business in LA and cash in 20k miles coming home a few days later. Have quite a few trips next year so a MR for the 1600 miles is likely worth it. On the other hand, I would rather hang around Kauai for a day or two.