I think it is very possible to do Hawaii on a budget. One does not have to stay in a large, expensive resort hotel to enjoy all that Hawaii has to offer. 19 days would afford you the time to see three islands, including the Big Island and Volcano National Park. You could include a couple of days on O'ahu to visit the key points of interest; Pearl Harbor, the Missouri and the Bowfin. You could climb Diamond Head and visit the Polynesian Cultural Center. We would never go to Hawaii without including Maui on our list. Kauai is lovely also. Another wonderful trip we did in 10 days was northern California. We landed in SFO, stayed two nights, went to Sausalito for breakfast, Muir wood, and Napa Valley. From there we spent 3 nights in Yosemite, (loved it), took in the Mariposa Grove of tall trees, drove through Fresno, stayed in Cambria (beautiful) on to San Simeon and the Heart Castle, up through the Big Sur, Monterey, the aquarium in Monterey, saw the cars for the Concourse de Elegance, drove though Santa Cruz, road the coaster and got the flight back home. We also loved Southern Calf. LAX, to Anaheim, Disneyland, Universal, down through Escondido to Wild Animal Park, part of the San Diego Zoo, onto Coronado Island, stayed at the Hotel Del for a couple of nights, onto the Marriott, visited San Diego Zoo, Sea World, the coast line, saw the seals, etc. I would see the USA first.