Cal Newport's "Deep Work" cites an example of someone buying business-class airline tickets because the ability to focus on a plane was such a boon.

I'd do it if I was in SIN. Changi's pretty nice, and you can't go airside without a boarding pass. If you fly business or first class, Singapore Airlines is a pretty nice experience. I'm usually extremely productive on flights, so it would make a change from working at home or in a cafe or whatever. Also, I like aircraft and the experience of flying, and it's been a while since the last time I did it.

They’re missing a real trick: turn the plane into a casino, brothel, or disco. It would be the air equivalent of a party-bus. I bet they’d make a killing.

possibly to allow people to explore the airport and go home after without breaking the rules. Additionally pilots will have a better opportunity to track their flight hours to maintain their license.