Ours is a small island, Armand, with a total population of 50,000 max. Public transport consists of jitneys and taxis; the rest of us own cars, but occasionally use the others. Fares are about two bucks, I think. We usually take a taxi to or from the airport, when we're both going away, and that costs US$20 each way, which includes a tip. You didn't ask about the price of petrol, but on an island that's 20 miles long and 8 miles wide, who cares, right?