Is Duty Free really cheaper?

Related questions

1. Are flights from Edinburgh Cancelled?
2. How much does a taxi cost from Edinburgh airport to city Centre?
3. Can you take your own food on board a plane?
4. How do I get from Edinburgh airport to city Centre?
5. How far is Edinburgh train station to the airport?
6. Can you buy tickets on the Edinburgh tram?
7. What's the duty free allowance?
8. What time do I need to be at Edinburgh airport?
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10. Can I fly to Scotland without a passport?

Tags

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2. #shops
3. #customers
4. #street
5. #perfectly
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8. #which
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11. #airport
12. #essentially
13. #status
14. #special
15. #benefit
16. #shopping
17. #airports
18. #possible
19. #exempt