Well, I don't see how they would get around visa requirements. And there are some countries I would prefer not to travel to on general safety grounds, or without adequate preparation.
But if it was a random domestic destination in the US or Canada, I'd be more than happy to do this.
Let's assume it's someplace domestic. Probably touristy. So not a no-name town.
So here's the clarification questions for GSHamster who said he'd do it.
Under what circumstances does he tend to be flying out in an airport?
On review of those circumstances, would he really cancel them right then and there with no forethought to go on a random trip to NYC, LA, Seattle or some other "destination" city in the US?
It's one thing to sit here, thinking "I could drop everything and go to a random city that probably does not suck for a weekend."
It's another to have planned a trip, bought and paid for the ticket, and when you get to the airport and see this offer, completely change your mind, cancel your plans, and go on the random trip.
I think Umbran identified the most feasible scenario is somebody who was going on vacation, and wasn't too attached to the destination. Somebody heading for a trip to Vegas for the weekend might be that kind of person.