I couldn't care less about the points, but damn it if I dip below 90% overall completion there's a problem. I'm not a 'whore' in that I buy games for achievements. I play games that I love but also get all of the achievements, whatever you call that.
"In peace, vigilance. In war, victory. In death, sacrifice." ~ The Grey Wardens http://www.trueachievements.com/mygames.aspx?gamerid=71900