Macbook Air Logicboard broken

Hello,

the LogicBoard of my now exactly 2 year old Macbook Air is broken. I checked it at an Apple Reseller store. They offered me a repair for 540 EUR.

I have bought an Apple MacBook because I thought the products are of a good quality. I have never had such a problem with my former PC´s.

Is this a common problem with this series? Does anyone had the same problem?

Is there a chance that the repair get´s carried out at Apple´s expense?

Thanks for your responses

Buck