AG Contest?

I am thinking about having a contest to give away FREE ag. It will probably be 1,000 ag & through Facebook Credits. I don't know about this yet but if I do this would be what it would be like.
You would have to be a follower to win though. ;)

-1,000 AG
-Through Facebook Credits
-I will buy you a Facebook Credit Giftcard.
-Person Would be Randomly Chosen
-Only FOLLOWERS will be chosen.


What do you think of this idea? Yes or no?