I found one in the bazaar for 2500 pp last Saturday. Very glad to find it, but won roll on Minor Signet of the Dark Sorcerer last night so probably will end up selling it after I finish the quest for the Gem of Sorcery.
I looted one the other day on Solusek Ro and have not seen one selling the bazaar. Seems quite rare at least on that server or no can get an upgrade for it so they just aren't selling it. Whatever the case I was very happy to win mine with a roll of 186 for /random 4 444.