When I went on the KoAloha tour, I was told by a KoAloha representative that the best place to buy a KoAloha ukulele is in Waikiki because they had great prices there and KoAloha doesn't compete with its own dealers. While I was shopping in Waikiki, the two places I went to that had KoAlohas and impressed me the most were
Bob's Ukulele (I went to the one at the Royal Hawaiian Shopping Center; there's also one at the Marriott Waikiki Beach) and
Ukulele Puapua 2 on Kalakaua Avenue. The person I met at Bob's was really friendly and knowledgeable about ukes, and the people at Ukulele Puapua 2 offered to email me photos of ukes in stock and play the ukes I was interested in over the phone if I couldn't buy one in person. I also saw KoAlohas at
Dan's Guitars in Honolulu for the same price they were selling for in Waikiki, and the people there are great too. Good luck!