I did this at the Las Vegas McCarran airport once in 2016 when my headphones broke and I really didn't fancy doing the flight all the way back to London using t

I did this at the Las Vegas McCarran airport once in 2016 when my headphones broke and I really didn't fancy doing the flight all the way back to London using the terrible earphones they hand out in-flight. Surprisingly got a GREAT deal on a pair of mid-range Sony over-ear headphones for a bit cheaper than what I could see on London in-store prices or even on Amazon :-O I suspect because of some inventory clearance deal? Literally every other SKU in the vending machine was terribly overpriced though, so I was quite happy at this stroke of luck. I'm still using the headphones to this day, so that was shockingly good value for airport vending machine clearance tat! Edit: looked it up and I paid $50 for this, which is/was comparable to it's Amazon price at the time -- so not cheaper, but not ridiculously overpriced either.