I'm a RC so while looking for possible orders to fill I have noticed that the artisan points awarded as well as the amount of Family Vault Credits needed to purchase identical items is not equal.
For example, right now there are two requests for Auroral Hardy Runes, one costing 759 points and the other 773. The Empyrean Rage Runeshard costs are all different as well.
On that same note, why do blue augments for the various tradeskills cost more to purchase than the higher quality purple augments? For example, a blue quality Empyrean Keen augment costs 1515 points while the much better purple quality Stellar Keen augment only costs 1428.