im aware of that....but the point is that its for NEW players who want to up thier skill without having to buy more and more all the time.
also you can sell whatever element you get from disassembling it.
when i started out, i done some crafting....and then i used the enchant stuff to enchant them up and then i disassemble them, to get a little more skill points....
in some cases, its helped me level up when i have like 8 points left to fill, and no money to buy new parts to craft, but a ton of hammers, and some leftover crafted weapons.