Not enough Credits
The advance crystals that had been given to Quinn, couldn't be used to get any of the items from his system shop. Usuelly the items that came from the systems shop were better quality and more powerful than the ones he could find online. The only downside was, many of the items required specific crystals for them to be created.
An example of this was the intermediate crystal Quinn owned, that could now be used to create two short swords for Vorden. Although, he didn't quite have the funds to make it for now, as it still required him to purchase two more intermediate crystals. He was already low on funds and didn't know how much a forger would charge him to create the advanced weapon.