I suggest Gem raids are made a bit better chest-drop wise.. I've killed something like 3000 bosses by this point, and NEVER found a purple. Only a few blues, all of which I sold as they were war/tech or something and level 25 or so. I would love a 1% drop chance on each enhance gem type, maybe things like upgrade books and magic books at a 1% drop rate... Maybe a raise in % of purple/blue drops for the higher gem raids (Demon a small raise, Metal a significant one?).
-Talon