kinda stupid if u ask me giving u the trial when u buy the game whats the point in that.
what if u buy the game n its rubbish then you just wasted money on a game you can never take back.
Its so you can give them to friend to test it. And also as much possibly eliminate gold sellers.
Anther thing is that they have at least partially control of how many people can get in game (imagine millions of players trying log with trial at launch)