Also love Planescape and Al-Qadim
Those are my two favourite campaign settings, one thing I especially love about Al-Qadim is no meta-setting crapola (busybody writers messing with the setting, ala Time of Troubles, Faction War, Grand Conjunction, etc).
Agree. I understand that the reason behind metaplots and setting evolution is that they make it a living setting, so a lot of people who regularly play in the setting have something new all the time. Unfortunately it doesn't work for me, since I only get to play the game sparsely, and therefore setting changes actually get in my way. My ideal is a fantasy setting that is designed once, sets a starting point for everyone, and then stays the same forever (updating only the crunch through editions). Ironically two of my favourite settings (FR and Rokugan) are heavily metaplotted... I just picked an era and froze them at that point for my games.
I do a similar thing, I stick with the original boxed set/book for each setting (Grey Box for FR, Dragonlance Adventures for Krynn, original 1983 boxed set for Greyhawk, original 2nd Ed boxed set for Dark Sun, etc), and I ignore all the meta-novels/adventures (Prism Pentad, Unhuman Wars II, etc).
My ideal is a fantasy setting that is designed once, sets a starting point for everyone, and then stays the same forever (updating only the crunch through editions).

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.