Holy ♥♥♥♥! Greedy pieces of ****!
Seriously this is one thing that should have been part of the game in the beginning. I recall in Guild Wars one that 250 was the limit the game could handle for a stack and that the developers were unable to change this. I had hoped in GW2 this would change but I guess their greed got the better of them. If they are going this far then they may as well stop selling boxes and change to a complete free to play model.