Duskborne Aethersand is used in all one-star foods, including popular edibles like Creme Brulee and Steamed Staff. It's also used to make Draconian and Max-stat potions - and given how Alchemists have been wailing for increased potion yields, it's evident that a lot of people are making these items (and wish they could make more at once).

Yeah, there's a market for Duskborne Aethersand, on most servers, anyway. On servers where the stuff sells cheap, I dunno, maybe the raiding scene isn't as popular?