Enchanting is a profitable and practical major in any version. It is quite expensive to copy the materials decomposed by falling equipment, and it is also an economic source to charge OEM fees to enchant others. The enchanter's two rings greatly enchanted his own attributes!

Apart from skinning, I don't think there is anything more practical for knights than the 20 crits provided by skinning professionals. Besides, peeling is raw material, so there is no need to sell it, right?