That is something I haven't considered. Since the introduction of dark matter, I'm actually paying less for repairs, because I know exactly how much the materials cost.

Before, I'd put my weapon up for 10k, because finding a high level goldsmith willing to sacrifice a jade to repair my knuckles was near impossible. Now I put it up for 6k, because I know grade 5 dark matter only costs 4800, and it gets repaired within minutes!

With respect, I have unliked the OP. Apologies.