I've corrected the price of the restorative ointment. It had been valued at 1000 GP but should have been 100 GP.  It was a bit of an easy way to get money.

In addition, some items have been marked as unsellable. You might  find a trader selling them, if they have been lucky enough to find them in their travels, but traders will not buy them off you. This prevents magic items being used as a quick way to get lots of gold. 

The whole aim of the game is to collect gold for the townsfolk, and before this update the magic items, if you ever got deep enough to find them, used to provide a cheap shortcut.