Due to a sudden hurricane off the coast, as well as several other unfortunate coincidences, this month's shipment of potion bottles has been delayed. As a result, potion merchants around Valorn and Kilican have been forced to drastically raise prices on health and power potions to deal with their shortage. Hopefully the weather will improve soon, and potion prices will return to their former price.
(actually, there is a bug that needs to be fixed... raising potion price is the best way to compensate until Cory, who is extremely busy, has time to work)