Angcuru said:
And elves DO live forever, it's just the factor of them desiring to move on. There ARE those who ignore that desire, ever hear of Ascended elves?
Nah. You're confusing D&D elves with melnibonoldorelves. They are not the same. The whole "call to the west" and "fading to Arvandor" things is no more -- thankfully, as I don't want this kind of thing to be shoved down my campaign's metaphorical mouth. Or arse. Or whatever.
In other words, unless you house-rule it in your campaign, elves are mortal. And there is no mention at all of "ascended elves". Not in their PC write-up in the PH, not in their monster write-up in the MM, heck, not even in Races of Faerûn (which isn't core, by the way).
Now, as Psion said, levels are a factor of heroism, not age. You don't need to be old to have lots of XP in D&D. One of my PC gained 5 levels while aging only two weeks.
And elves are likely to be the less heroic race of all -- they are few, have low birth rate, long long life expectancy, little puny ridiculous Constitution, and they prefer prancing, singing, drinking, frolicking (and in the rare times they are in a sober and serious mood, studying magic) than traveling to noisy stinking cities with boring stinky dwarves and humans to equip for treks in icky stinking dungeon and fight ugly stinking monsters.