The alcohol they sell on planes is overpriced, that's a fact. But it's definitely cheaper than if you bring booze onto a flight and you get caught drinking it.

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If you do bring your own alcohol, you could get a fine of up to $11,000.

You're actually allowed to bring the airplane-sized bottles of alcohol through TSA, but you can't drink them on a plan. FAA regulations say you can only drink alcohol if it's served to you by the flight attendants.

Read more at Vice.