I'm reminded of PayPal's early days when fraud was a big problem (and probably costed a lot more than a trashed apartment). If AirBnB handles the risk well, it

I'm reminded of PayPal's early days when fraud was a big problem (and probably costed a lot more than a trashed apartment). If AirBnB handles the risk well, it may well set up a high barrier of entry to other me-too enterprises trying to do the same thing.