Sweet Nitro have implemented custom tournaments and massive tournaments and both have pretty much been an epic fail. What WOULD be good and interesting however is custom GCs. Imagine if you could pay say 4 or 5 gold balls to get a GC code and then offer that to another guild so they could then play you in a GC.
Now THAT, dear friends, would be a worthwhile innovation.
Now THAT, dear friends, would be a worthwhile innovation.