If you decide to use the route taxi, make sure you don't get a driver off his route. He will be looking for you to pay charter prices. Also, some route taxi drivers won't be pleased that you are wise to the system. I've had some not so pleasant rides. One ride, in particular, during my last visit was pretty hostile. Charter prices are going to change based on time of day, time of year, etc., but it's really up to you to negotiate. There's no set rate.