First of all, what good is it to implement a gold sink if you make the item to use said gold sink so scarce that the price per each is 500g+, with some people even asking upwards of 1,000 gold for a single one that will most likely not even give you the desired result ?
I mean seriously. It's a gold sink, but rendered useless considering how low probability it is to gain the items. Before anyone even brings it up, the fact you can get one from a world boss doesn't mean anything, especially when world bosses are controlled by a small group of people, at least the new mini-world bosses. Not sure if they drop from those, but I'm willing to bet they do, however, it does the general population no good, considering those seem to be camped by raids every hour, every day, but I digress.
The frequency of these things dropping in Lv. 40, 50 legendary dungeons needs to be turned up significantly. The results of using them is such garbage, that it doesn't justify it's scarcity/outrageous price per each on the market! For example, a while back the last time I played with these armor refiners, the 9th time trying it "refined" the item back to what I began with, then the 10th just swapped positions of the 2 stats! Complete garbage! Between the player market cost and the NPC cost, in addition the Ellun cost we should be able to pick the stats for each line.
The same can be said about the weapon refiners, though it's slightly different considering people only have 1-2 weapons, where as everyone has 5 pieces of armor and an offhand that, for what ever reason, is considered an armor piece.
It's great they are in the monthly log in npc shop.. but 3 writs for 1 ? Give me a break! With the results you will most likely get, they should only be 1 for 1.
Just so you guys are fully aware, It's little things like this that are killing this game slowly. I think it's safe to say that working on your gear set for an excessive amount of time is not fun for probably 90% of the player bases. Sure, there is some level of satisfaction, and a sense of accomplishment when you continually strive to get it polished just right, but it's a very, very fine line, especially when you know (if you've had any level of experience with KR mmos) that a new gear set is always around the corner.
With out getting over complicated, my simple suggests to remedy this very frustrating issue would be to either 1 to 3 of the choices I've attached to this poll. If it was up to me, I'd scrap the whole system and rebuild it from the ground up, taking inspiration from some of the more competent refining systems in other games... Anyway: