glancealot
Legend
is this scrub alone or is this a common misconception?
TL;DR version
from elitist jerks forums.
# There is some confusion about "diminishing returns" on armor. The DR given by armor follows a diminishing-return curve, so the higher your DR is, the more armor is required to increase it by 1%. However, the value of each extra point of DR increases as your DR increases. For example, consider an attack that does 10,000 physical damage before armor is considered:
* If your armor DR is 50% and you increase it to 51%, the damage done by the attack is reduced from 5,000 to 4,900, a 2% reduction.
* If your armor DR is 60% and you increase it to 61%, the damage done by the attack is reduced from 4,000 to 3,900, a 2.5% reduction.
So, even though your DR% will increase more slowly as you add more and more armor, each extra point of armor is providing roughly the same relative benefit. Hence, increasing your armor is always worthwhile. (For a more detailed explanation with math and such, see Quigon's Protection Warrior Guide.)
# The important thing to remember is that while your character sheet shows the changes in the absolute value of your DR, your healers will see the relative change in your DR. For example, if you go from 60.0% DR to 64.0% DR, your character sheet only shows a 4% increase, but your healers will notice you taking 10% less damage. (Actually they'll see even more than that when blocks are factored in.)
TL;DR version
from elitist jerks forums.
# There is some confusion about "diminishing returns" on armor. The DR given by armor follows a diminishing-return curve, so the higher your DR is, the more armor is required to increase it by 1%. However, the value of each extra point of DR increases as your DR increases. For example, consider an attack that does 10,000 physical damage before armor is considered:
* If your armor DR is 50% and you increase it to 51%, the damage done by the attack is reduced from 5,000 to 4,900, a 2% reduction.
* If your armor DR is 60% and you increase it to 61%, the damage done by the attack is reduced from 4,000 to 3,900, a 2.5% reduction.
So, even though your DR% will increase more slowly as you add more and more armor, each extra point of armor is providing roughly the same relative benefit. Hence, increasing your armor is always worthwhile. (For a more detailed explanation with math and such, see Quigon's Protection Warrior Guide.)
# The important thing to remember is that while your character sheet shows the changes in the absolute value of your DR, your healers will see the relative change in your DR. For example, if you go from 60.0% DR to 64.0% DR, your character sheet only shows a 4% increase, but your healers will notice you taking 10% less damage. (Actually they'll see even more than that when blocks are factored in.)