100% Vanity...
I've always been fat and I can't stand how I look. Plus size clothes are really ugly and it would be nice to look in a mirror and think "jeez your sexy" lol
Also it would be nice to be considered attractive by men.
The health that comes from losing weight is nice too, my family has a bad health history with heart problems, cancers of all kinds, diabetes, and who knows what else.
I want to have some nice abs to show off
I know I should be losing weight because being fat is bad for you...But I might as well be honest.