My experience has been similar to Booger's, for me and my wife. Sometimes, I forget to check the door to see if it's a route taxi (usually after a day of enjoying libations on the beach) and I'll offer the driver $500 from the beach to the West End (or vice versa). Sometimes they accept and sometimes they counter offer for $600 to $1000. I usually just accept a counter offer.

One time I had a route taxi driver, with 2 other passengers in the car, tell me it would be $10 US from Home Sweet Home on the West End to 3 Dives. I told him to keep driving.