mindread is usefull if the NPC is a quest giver, but early in the game is not wise to spend points on it beause the dept you get you will make up for it later in the game as you reach the orobas Fjords. when you are there then it will be wise to invest some points on it because the price will be much higer from there on (3500XP) for example
and remember that reading minds gives you new dialog option(s) to end a quest
