By the time they are done with imbueing it might not be worth the effort of making a garg and training the skill.
What your left with bascially is crafting an item with a runic on default material (no specail material used ie iron,wood not shadow,frost). After getting something you want .. imbueing it +300% (i think your limited to 10trys) and then enhancing it. (if you can take the risk)
So its still going to be massively expensive to create a disired item. Which will please alot of people .. but being as i personally lost most of my desirable items when i lost my storage house it doesnt necessarily please me.