Rent ... a chicken! What's the price of eggs?

Here's a good business idea for hard times. A company in Navarra, whose name is, surprisingly, Rent-a-Chicken in Spanish (alquila una gallina) will rent you an egg-laying hen for a month. If you like the idea, she lays plenty of eggs and you want to keep her, they will sell her to you at the end of the month. According to a TV report, it can work out at a tenth of the price of eggs at the supermarket. The idea comes from Australia, where a company called - wait for it - Rentachook. Okay, all you campo people, we're waiting to advertise your new business...