We definitely are aware that the experience can start to degrade if the Battleground is completely packed with several hundreds of players; the sides begin to lose cohesion, individuals feel less able to contribute to the whole cause, and the potential evolves for a lop-sided affair. So we do have a cap on the number of people on each side that can enter a Battleground. Rest assured we want the two sides to be fairly matched. However, if you have to wait for your turn to enter the Battleground, you can still adventure in the rest of the game world before you are summoned to fight. Our goal has always been to create the optimum experience, and so we will continue to tweak the numbers till we feel we've got an epic, yet manageable, conflict that is fair to both Horde and Alliance players.