Do you have a Hovercraft?

I enjoy the recent Orbitz (the travel company, not the gum) commercial, where an average guy watering his yard is interrupted by a landing of the Orbitz Hovercraft.

The pilot emerges to hand the guy a refund check, because after he booked his flight, the prices dropped and he was entitled to a refund for the difference.

"Why didn't you just mail it?" the confused homeowner asks.

"Because we have a Hovercraft!" is the reply.

And so it got me thinking. How many work processes exist because they can?