Every 10 levels, they changed the amount of experience you needed to level up.
The change came at the x5 levels.
So from 25 to 35, you might have needed level cubed x 1.2 x 100.
And from 35 to 45, you might have needed level cubed x 1.3 x 100.
Basically needed 10% of the experience for every level previous, in addition to the new experience for your level, on each hell level.
So 35, 45, 55.. would take 50+ hours of grinding on the best experience stuff to do.
And if you died, you'd lose experience equal to 10-12 hours of leveling time.
WoW isn't that hard core of a game.
EverQuest I: Bard / Enchanter / Druid / Wizard / 2x Magician.
Diablo III: 4x Crusader & 4x Wizard.
My Guide to IS Boxer http://www.dual-boxing.com/showthread.php?t=26231 (somewhat dated).
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