The price listed above is wrong. The minimum merchant value is 12599pp 9gp 9sp 9cp. Actually all of their faycite shard prices are wrong.
And just so everyone is fully aware, you are spending almost 13kpp to reduce your disc timer by 5%. In this case, that's 2.25 seconds off a 45 second disc. So basically, you are spending 13kpp to reduce Maelstrom Blade to 43 seconds instead of 45 seconds. Not only that, but these faycite shard augments (all of them) cannot be removed; they can only destroyed. So that means that every time you upgrade the piece of armor, you have to go get another one for an additional 13kpp. Multiply that by 4 for the 4 good ones (in my opinion: Sneer, Jeer, Maelstrom Blade and Fourth Wind), and you are looking at 52kpp.
If you are in a raiding guild, I wouldn't even bother putting these in your armor until you have the 4.5 SOD raid gear (or wait longer if you are raiding UF). Thanks, Sony. What a worthless piece of crap. No wait, a prohibitively expensive worthless piece of crap. Unless you are a master trade skiller or a plat farmer, not many are going to be able to afford to fork out over 50kpp every time they get a new set of armor while getting such a small benefit in return. And warriors have it easy. Many other classes, especially casters, have a lot more faycite shards that could be considered worthwhile if not of the cost and the fact the augments are not removable.
In my opinion, skip these. For the cost, aggravation, difficulty to acquire (need ally for each theme that you want the faycite shards from), and the measly 5% reduction in the timers of discs that already have fairly short reset timers (with the exception of Fourth Wind), these are totally not worth it. You have the same problem with Emblems for chest armor, but at least those have very nice benefits for the cost. Either the price needs to be dropped considerably, or the focus needs to be increased to 10% and the augments made removable.
Edited, Jun 2nd 2010 6:32am by Arcturys