I think i get the point, you dont want them to change faction when the population is stable and comparable on both sides. ( i could add another obvious point but wait for my beloved word ridicoulus)
I am not sure if this is connected, but from the bg queues it seems as the population on the horde side is a lot lower than the one on the ally side.
Could you idk implement faction change events where you lower the price for a weekend.
ps: i want to go back ally, so this thread aint helping me at all
just wanted to point out that 30 points, or 30 coins, yes same price, ridicoulus right, per char, ... considering that makes it a lot more ridicoulus, no one has only one char. IT wont get you many donations nor will it keep the population stable between the sides.