I'm very much a people person who is invigorated, inspired and stimulated by people, social interaction and the widespread selection of food, drink and culture available at my finger tips. An island retreat to get away for a week would be ideal but ultimately I'm a social being who loves the snow and skiing.
If I had the option I probably would want to own an Island for myself. I however wouldn't want to have it all for myself. With all the modern luxary geared to me alone. This sounds rather boring. I would use the island to conduct much entertaining of guests or some kind of business.
YES, if it was always going to be safe! My father died in the late '70's, but he often talked about buying an island. I'll have to ask my mother why he didn't! As she now has full on dementia, she might not remember.