You know scales and I are not good friends. Mostly because it does not tell you the whole story. Of course, if you factor in your age, sex, height, and muscle mass, the number on the scale could mean less or more. Because of this, I tend to stay away from scales and focus on body fat percentage and BMI.
But why? Why do I care about these things? Well, your body fat and your BMI are a much better indication of whether you are healthy or not, whether you will look more 'cut' or have some more flab, and whether you are eating right as well.