I had all the Aeons and all the Celestial Weapons fully charged. I had unlocked Nemesis but hadn't gotten around to beating him. I had all but a couple of the Al Bhed primers but, in all honesty, you can skip a few and still read the text perfectly well. I used to work the Crypto Quips in the paper and having most of the letters makes it insanely easy to figure out even if you forget from conversation to conversation what the conversion is.