We need it higly now. Because there are a lot of old junk, like q2 cauldrons, q10 bronze swords etc.
Old anvils, that rarely can be gifted due relatively-low quality… Old wortless jewelerry…
After smelting you will get less metal than used for item (bars and nuggets).
Also it would be nice to have some fuel (wooden scraps) and strings from old looms, churns, presses and other things, that we rebuilt few times.
Not necessary but just for fun. May be, once I will bake my buns with such hQ-scrap.