Depends on the country as well, some country airports with high item tax make it worth buying at the airport.
Take the vice tax for example, most Islamic countries probably at alcohol cheaper at their airports.
Same goes with countries that have items with pricing power, I always get certain gifts at Japanese airports since the price it usually cheaper with tax free comparative to the rest of the country.
US airports though... Never worth it. Overpriced af
Sure they're all 'drugs', but while THC and ethanol have comparable safety profiles both are unequivocally different from and far less dangerous+addictive than fentanyl and crack cocaine for both public and individual health...
Take the vice tax for example, most Islamic countries probably at alcohol cheaper at their airports.
Same goes with countries that have items with pricing power, I always get certain gifts at Japanese airports since the price it usually cheaper with tax free comparative to the rest of the country.
US airports though... Never worth it. Overpriced af