Damn I just spent 50K stones last night buying mats to sell. Wish I'd known this, I would have saved them.
You probably made more money by selling now -- prices will plumet when Orsinium drops.
I don't know, prices have been dropping quickly as it is. Come 1.8 every caster and his mother is going to be crafting Law of Julianos set so Ancestor Silk, and Repora is going to be selling like hotcakes. Consumption will go through the roof. There may be an initial flood of players saturating the market but prices after the first few days of a patch always reach a high point. As long as ZoS doesn't add any easily farmable alternatives for these materials they should stay at a premium. Personally I'd love to be able to start vendoring the damn ornate V16 gear I get instead of Deconning them. It almost seems like a crime.
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Ezareth VR16 AD Sorc - Rank 36 - Axe NA
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Nodes aren't going to be the only source of V16 mats. All overland/public dungeon kills and arena runs by a v16 will drop v16 gear to deconstruct. That just leaves TV stones for gear sets and repora