Some in my group are wondering, due to the price of alcohol on the island, whether or not to pack a quart to take with, stop at a duty free in U.S. prior to departing a buying a bottle to take with, vs. simply buying it all locally upon arrival.

We'll obviously be landing at airport, then hopefully renting a van for the week and then driving to Rum Point for our house rental. Shopping for groceries, booze and supplies along the way.

Is there any sense or savings in packing a bottle, going to a duty free before leaving vs. just simply buying it on island and be done with it?

I think all one can bring in is 1L anyway, and I'll be drinking mostly beer, so I know I'll be trying to steer van to brewery on way to Rum Point.

Yes, this is penny pinching at its best, but curious people want to know!

Thanks for any responses.