[vladd]

It's not the traffic that's earning the revenue, it's your property which allows you to charge for the rent. A more sane metric would be to compute your "profit", which is your income, the rent, minus your expenses in renting out the property:

  - amortized property deterioration
  - administrative time dealing with the tenants
  - opportunity costs (the interest/ROI that you could expect the principal to bring
    if it was not tied up in your house)

and then you can compare this profit and the fees AirBNB is charging for it against other channels (such as making your own page and driving traffic to it via Adwords).

Just because I'm selling $10'000 diamonds at 50% discount on a website which brings me 1 sale every 100 page-views doesn't mean that each pageview is worth $50.