[toomuchtodo]

Unused capacity is a market inefficiency. If you've got a jet deadheading somewhere empty, or have extra seats when someone hasn't bought out the whole cabin, that's an opportunity to offset your costs or even profit depending on the situation.

If your app knows where people want to go to, knows their location, knows their spend willingness, etc, you can capture that additional revenue you might've never known about.

[jacques_chester]

Yep. Selling unused capacity, even at low prices, represents pure profit when your variable costs have already been met.