What I never understood (along with the int + int + int = win mode that pallys got into) is why blizzard haven't actually made them better? I don't meant his in a complaining way as in: "I think they should have and could have done better", because quite frankly I don't know that.
But I would like to know WHY this is happening.
Is there a reason why the iLvl200 is better? Is that why they "didn't bother" (so to speak) with making a better one? Because the ilvl200 was already there doing its job?

@MrJackSauce

At Heroic 25 ICC levels, at least in my experience, my gearing is such that I get enough crit/haste/MP5/SP from gear and the one concern above all becomes the ability to spam heals continuously and at large amounts for as long as possible.

It's a horrible way of healing, but it's the most successful way to heal in the current Paladin HL build, which I prefer to the more frenetic and less predictable FoL builds.

Cataclysm is going to blow all of this out of the water, of course, given more limited mana again and large health pools that won't lead to tanks getting insta-gibbed by three huge melee hits in less than 4 seconds. (As happened on Heroic Sindragosa to my guild the other day). XD

TL;DR: The iLvL 200 Libram use and Int stacking developed out of caring only about throughput and being most effective as stationary spambots.

I think Blizz tried to have more interesting Librams, but none of them ended up being as good as straight up mana conservation so we could keep on spamming.

But surely Blizzard would have at least seen this coming before creating the Frost badge libram and created one accordingly. I am sure that somewhere someone MUST have said something to the effect of: "Hey look, ( to quote you :) ) the one concern above all becomes the ability to spam heals continuously and at large amounts for as long as possible." And maybe they could have made another one that when you used holy light you would get a small mana regen if it crit or something. It's obvious that holy shock isn't being used and so making a libram for it in the hopes that it would be used didn't make much sense, especially seeing as it didn't add anything to make holy shock viable.

Obviously they DID want a bit of freedom to choose what libram you wanted, and the different spells did of course need some loving throughout the expansion. I just believe that they could have done it better, by seeing what pallys were using and going with that kind of feel.

Note: not complaining!! Just theorizing as to why they didn't do what really kinda makes sense to me personally :)

@MrJackSauce

Yeah you'd have thought. I think they were hoping to entice us into using Holy Shock more often by giving it both a Libram and some synergy with our talents, but in reality the numbers just didn't pan out. I still use Holy Shock in emergencies, but the Libram that grants spellpower with HS is weak and has too short of an active period to keep up the weak bonus all the time.

In the end, tanks were taking too much damage and we'd worn into our niche as tank healers so much so that continual throughput (aka spamming) becomes the most effective answer.