There are a few other good amulets in the game; in the basement of the cursed Abbey, in Janus mother's house, in the castle treasure room, the holy amulet (that would have been better than the Amulet of Glory, but I went for the holy sword instead).....
Just go with whatever the best equipment is when you find it, and you should be more than ready for the end of the game (I found it easy).
