Here is a new method to you people who are really dedicated to helping.
Taking a vow, Selling keys for no more than 3 ref a key. Why? On outpost, that will creat competition. if we have a good sized group of people to do that, then we will be able to create tension with other key sellers. they'll have to lower their prices. We can do this.

But i'm not asking any of you to do this yet, because even i don't have any keys ;-;

But i'll be damned if i ever sell a key for more than 3 ref ever again.