On my last visit to Lihue, Kauai the Costco there had just opened. I did not have a membership but asked some of the locals how they liked it. They said they Loved Costco! When it opened they had installed the standard Costco gas station and the prices were 25 cents cheaper than the other stations on the island. Of course all the other stations complained but did eventually drop their prices to compete with Costco.