I think bows make games more difficult and longer because of bowspammers. I think that when arrows are double the price it will make it harder for bowspammers. Especially early game. It is still a reasonable price especially when you have a lvl3 or 4 gold gen. This will make it much harder to camp/bowspam but it won't affect the late game. I have died way to many times by archers with leather armor.