I know you're joking around but I thought I'd answer anyway. The key aspect of flights is that your "victim" isn't going anywhere. He's stuck in that seat and can't escape nearly as easily as he could if you approached him in a cafe, museum, etc.

EG - Got a startup that'll need buy in from a major wireless carrier (you're gon' change the industry like the iPhone did!) but can't get attention from any of them? Imagine what you could work if you were sitting next to the CEO of Verizon, AT&T, or T-Mobile on a 6 hour flight. How much would you pay for the information to get you that seat?