I would think the value of this will drop with the emergence of the tailored Studded Acrylia Cloak. SAC has 10Wis as well as a few other stats, not as high AC so tanks will prefer the Dragonwing Cloak, but for Casters the tailored cloak will be more than sufficient. Eventually the Studded Acrylia Cloaks will drop in price, much like tailored Othmir has and I believe the trivial is lower so expect more tradesmen to be selling these.
This is not to say Dragon isnt better, just that price is bound to drop since it does have a similar counterpart.
Edited, Wed Feb 6 14:47:42 2002