@tfw73, I don't know if you can just walk up to the booth and get the same price. If you're planning on just going to MoBay and catching a cab to Negril, maybe you can ask them at the booth what they would charge. I did it through viator and was very happy with the service. Since there was only two of us going to Negril we got a private car. I suppose if there are several people arriving on the flight all going to negril, they would have a minivan or bus depending on the number of passengers.