The p2p side of this game is so expensive that most players are on the same page in terms of where their armor stats are. Not saying I disagree with this suggestion but there's plenty of ways f2p players can acquire coupons which can be used to buy threads or pretty much participate in any p2p event.
But 10:1 ratio is fair, but do they really take suggestions into consideration? as I thought they just follow the releases from the CN version