Agreed. And at the risk of bumping this out-of-date thread a little more, I have a fun related story.
I was curious to see what I could do with my DK, that I wouldn't actually do live (the reasons will quickly become clear). On the PTR I regemmed everything, swapped around trinkets, and weapon runes. Basically all my gear is equal parts red and blue sockets, and currently (since Blood is my baby) I have Stam coming out of everything, heavily. I swapped my stam trinkets for Ony's Blood Talisman and my old dodge trinket (ilvl 200 still, yeesh), put the pure parry rune on my weapon, filled all my red sockets with pure dodge rating (including 3 jewelers dodge gems), and put dodge/stam gems in each blue socket.
The end result is, I went from about 38k health unbuffed with about 57% avoidance, to 30k health flat, and about 68% avoidance pre-buffing. I laughed quite hard at the staggering jump in avoidance (and the silly degree to which I was RS'ing). I am *not* advocating that people do this, but it is still worth appreciating just how much avoidance you can pick up without suffering the zomgAWFUL diminishing returns.