That being said, Airbnb Trips is not a sure thing. These tour and activity offerings are incredibly hard to launch and to scale. Companies have to get word-of-mouth going among the customer base and among potential suppliers who could lead tours and plan fun outings. In its few initial launch markets, Airbnb is doing this in a very labor-intensive way, in the hope that the model starts turning over on its own and building upon itself. If that’s still the business model for Airbnb Trips in two years, it won’t scale. But if in a year it takes on a life of its own, it could be a formidable force in the leisure-travel market. Get the full story at Duetto