It's expensive, and it's a long way away from anything else. I've been twice and both times the Big Island was my favorite. Maui and Kauai are spectacular in t

It's expensive, and it's a long way away from anything else. I've been twice and both times the Big Island was my favorite. Maui and Kauai are spectacular in their own ways, as are the few rural areas of Oahu, but there's nothing like the Big Island. The drive from Kailua-Kona to Hilo over the Saddle Road (which, in itself, goes to around 6600 ft) is spectacular, and if you have enough time to make a day of it, coming back around via the southern ring road is well worth it. If you get up early, Waimea and the surrounding area (esp the NW protuberance of land) are worth seeing as well. Huge variation in biomes in very short distances.