In the last 15 years people have really started loving the uniqueness of living on an island. Most of the people love the water and/or water sports.
They love the peace and quiet along with the rural feel. But in reality you are merely a few minutes from town or the freeways. I would say about 90% of the people live on water so clearly they have wonderful views of the water and all the life it holds. Living on the Delta is a great way to watch the many kinds of birds migrating up and down California! Once people live on the island they don't want to leave!