The only way they can make this work is if the emotes held a value afterwards. Kinda like what Fifa does with its player cards (don't know too much about that I'm not a Fifa player). What I do know is that if you open a pack which you could buy with real money you can atleast sell the unwanted/repeated player off. With these emotes they won't, valueless the second you own it. The could fix this with not allowing repeats but then again there aren't that many emotes so wont take long to have got them all and kinda makes the not knowing what you are getting thing pointless.