I'm not sure if this is implemented or not but I think it would be great if we can register our games online using a serial key that comes with the game (in the game's manual for instance).
This is good for many reasons. First, for proper support so FFG can tell that we are legitimate customers. Second, it is great for the future if FFG would make some online gaming that requires you to buy the actual box to be able to play (or create games).
Days of Wonder has this going on and it feels good to see my collection in my account detail (they know which games I bought).