I know a few games that their main story line quests on completion besides giving good xp / gold / also give a nice useable drop / armor / weapon / glyph / jewelry.

How hard would this be instead of dropping items that are bound to you that are not even better than crafted, not useable, when deconstructed also tend to produce no useable items?
This includes some of the useless trophies that we get that still have placeholder icons.