Just gotta say that I REALLY appreciate this addition. As a player that mostly does lifeskills currently, I've got a pair of artifacts for every life skill. I'd carry pairs for usually gathering, farming, and alchemy on me all the time (plus a pair for offensive fighting and a pair for defensive) and it was kind of a pain cause of the space they took up. 

The question for me now is whether I will continue to convert artifacts to purified lightstones or just store them, and also whether I will roulette the purified lightstones or just sell them, now that I can store the results without taking up storage slots.

I've only been rouletting the lightstones that I don't do anything with like bartering or trading. When lightstones became part of the game and I saw the iridescent lightstone combos you could create, I was like "Hell ya!" and bought one from the market. Then, I easily got two time stones... but when I went to get a LoW: Mind stone... SHIT! Another 373 million silver... and NONE in stock. Well, I've got my order in. Hopefully, I can get one through chance or get one eventually in CM.

Stocks: Good point. So maybe have to gamble after all.