精英币只可以通过击杀精英怪获得, 可以让玩家购买更好的装备 (在服务器内这一机制比较公平). 默认玩家需要很多的精英币才能购买到较好的装备, 制造顶级的盔甲，玩家必须为之奋斗. 在大多数服务器内,玩家可以用他们的货币来交换任何东西. 玩家可以建造自动农场挂机就可月入百万, 所以玩家可以很快地得到这种货币并轻而易举地只靠挂机获得顶级装备.
商店系统是这个插件正在构建的系统. It makes people grind through various tiers of loot and mobs for several hours. It allows players to learn about strategies to counter Elite Mob powers, such as arrow invulnerability. Even assuming that you are fine with players buying their way to the top of the armor tier and thereby skipping all progression, you are probably not fine with players constantly dying because they do not understand how Elite Mob powers work. Players are meant to be slowly introduced to how powers work, one power at a time, and not dropped into the highest tier of Elite Mobs where they can have up to 8 powers simultaneously, which makes understand how each one work in useful time pretty much impossible.
So maybe you are fine with players trading in wheat for god tier armor. And maybe you are fine with players dying without understanding why they aren't damaging the elite mob, likely making them rage quit and hate the plugin and your server by extension. But I am not. This plugin is not just for admins, it is for players as well. I usually allow admins to configure Elite Mobs the way they want to (the configuration options are absurdly extensive, after all) even when this probably results in a subpar experience (in my opinion), but this is one thing that I won't budge on. It is almost guaranteed that this would break the progression system and allow players to trade garbage in and I won't suffer complaints about the plugin giving god armor and having unkillable mobs because some admins screwed up their economy.
But I really want vault though I won't do it. I recommend you add vault compatibility yourself, or hire someone to do it for you. This plugin is open source, you are free to create a branch of it that has vault compatibility.