Am I luckey?

Two days ago, I recieved two $50.00 ITunes' gift cards for free from Apple. I think I won those by entering my information at one of our campus store. At first, I thought that I will try to sell the gift cards, but I couldn't find anywhere (anyone) to sell them. I am going to try the craigslist as my last chance.

I think at last, I should buy an IPod to be able to use the cards.