seikus: I think it would be better if they give us a code to buy a $9.99 game (for example) instead of giving us a specefic game. That way, everyone could get a game they don´t have. I already have Witcher 2 when they recently give it, and seems a lot of people happen the same. I´m so gratefull for all the games GOG give us along the year, but i think this way everyone could cross a name of their wishlist. What do you think?
Gifts, are gifts... Someone has to accept them and say "thanks"; even if it is not what he/she expected or had in mind. Say, if for example, a real friend of yours, gave you for present, a mug for coffee, would you propose the same thing to him/her? Which is: "please give me 5 dollars to buy myself another present, because i already have a mug of coffee for myself"?
Also, duplicates, are a damn fine chance to trade or giveaway. Another couple of excellent practices, this wonderful site excels at! Spread love, and keep the gifts coming and going, in chain!