I guess Big Frank is a better bargainer with taxis than I am, or maybe the "under $10" figure he quoted was per person with a couple of people or more in the taxi. I've never paid less than US$15 between the two airports (for the taxi, not per person). Since the muncipal airport is in town, taxis charge the same as if you were going into the main part of town, the Swing Bridge or whereever.
--Lan Sluder