in shiva sandy;
wind crystal stack 7k at AH.
and as an example; arrowwood lumber 16 gil at guild but 9k a stack at AH.
this is total *********
i just keep farming elementals though it is time-consuming but i cant farm damn lumbers and some guild campers are getting all of them in a very short time and i just dont wanna waste a wind crystals to craft my own lumber. and the worst part is; i need those cheap lumbers to skill up. SE is not helping true players in any way. we need strict limits on thing like this guild vendor.