I'm assuming for outlands I will more than likely want spellthread on my legs, as every +damage I can get makes the grind faster. However, for the 40-58 grind where I'll probably just be getting intellect and stamina (because there isn't much SD plate gear) would the +25 damage really make a whole lot of difference? At that point I'm getting basically 2 damage per tick on consecrate, 1 damage per block of holy shield, and 5 damage a hit on SoR (which I probably wont be using in favor of those lovely wisdom/light seals and judgements, unless I'm tanking...which wont happen much). But with the leg armor, I save around 40-50g apiece (50-60g vs. 100-110g on the AH for the leg armor / spellthread, respectively) and I get more stamina.
So...is it worth the extra expense to get the spell damage pre-outlands?