Going through the "I made this" achievements for all my crafting classes really makes me with we had the ability to craft more than QTY 1 of things like nuggets, threads, ingots, etc.... and it got me thinking of ideas that wouldn't trivialize the process(maybe already thought of)

My suggestion would be that you simply multiply everything about the craft. So if a craft takes 98 progress and 400 quality, crafting 10 of that item would require 980 progress and 4000 quality to complete/HQ the craft.