Alameda is just enough of a pain in the ass to get to that nobody really goes there unless they need to. That's what helps. People WANT to go to hawaii, but it's pretty easy to cut off (and they did). Note if you are unfamiliar with the geography and look up "Alameda" numbers, you'll probably get Alameda County, which more than just Alameda the island. Alameda County is, interestingly, the worst county in the bay area.