Permanent Tools from BLTC Procs
They did it just the once, included an item in the gem shop that offered a feature that wasn’t available inside the game itself. There was a strong reaction from part of the community that this was a bad idea, particularly because sprockets are otherwise so difficult to obtain in bulk within the game.
I’d be surprised if they create another gem shop item like it without also putting something similar in the game. The closest so far are the frostbitten tools, that drop tiny snowflakes, and can only be obtained via wintersday gifts (or exchanging ugly clothes).
John Smith: “you should kill monsters, because killing monsters is awesome.”