I agree seashell about the water taxi, but if you are in West End there is no real need for transportation unless you have a load of groceries. The collectivos serve their purpose and certainly can be 'intersting' if you want to see the rest of the island or go for groceries in Coxen Hole or French Harbour. Yes taxis can be expensive especially on 'cruise days' and only someone who thought they were invinceable would rent a scooter... although it looks like fun! All in all the transportation costs are less than on AC (unless you are right in San Pedro).