David, my cuz, whom I hooked up with in Cali last week, just spent 5 years over there working for Hilton Hotels, and really loved it. He's in Cali now working for Four Seasons and loves that too. When he graduated college 5 or so years ago (he's 28) he was offered a job in eastern Wisconsin where he grew up. He was offered another in Hawaii for $5,000 less, but decided to go for the adventure and is glad he did. He's had promotions and is making far more money doing more interesting work and has had more fun life experiences than if he'd stayed in Wisconsin, where he'd probably be married with children and trying to stay warm, LOL.
It is interesting I had never thought about some of those issues about living on an island such as mail taking long or things not being available in a store. But, I'm glad you love it and kudos to you for making your dream happen!