Dave, usually that is the case for us as well. This last time, walking up to the taxi stand, lady gave us a slip with the price, and told us to wait just a bit while she signaled a taxi to front of the line.
Suddenly here comes porters with gobs of luggage on carts and tour people, shoving their way past us as she scurried to get them all on various vans. One group complained loudly that they were going to charge per person. After 20 minutes of that, I finally walked up to her and said "remember us"? Oh..yeah, then she finally calls a single car taxi. Sheez...
Otherwise yeah...simple taxi to ship (or in our case..hotel) best way.