i can tell you from experience, there is a huge difference from lvl 7-9 walls. maybe it does take the same amount of lvl 6 wb. but only lvl 6 which you can only get at th10. also it adds a huge intimidation factor. as a th10 i am sure i would get attacked 100% more since i am almost always showing 400/400/3000 if i had lvl 7 walls instead of lvl 9. also as a th9 or th10 even if your bases is maxed def wise you still look attackable and like a noob with lvl 7 walls.





