We have a section of the board devoted to helping folks construct a "mileage run." Never thought about doing a "duty-free run." Gosh...I've been missing out on the REAL joy of travel all this time!
Guess it depends on whether you are a "Kramer" or a "Costanza"...
Kramer: I'll have a chance to go to the Duty Free shop.
George: The Duty Free Shop? Duty Free is the biggest sucker deal in retail.
Do you know how much duty is?
Kramer: No, I dunno how much duty is.
George: Duty is *nothing*. It's like sales tax...
Kramer: I still like to stop at the duty free shop.
George: I like to stop at the duty free shop.
They start to "sing", growing more excited after each iteration: I like to stop at the duty free shop! I like to stop at the duty free shop!