I haven't read all the posts here so I do not know if any man has touched on it.
After losing 80 pounds, the first major improvement I noticed was how much I improved in sexual performance. Sorry to have my mind in the gutter(okay not really, but I'm really not trying to offend), but it is an undeniable improvement that needs to be mentioned. Being much slimmer has made a huge difference.
Perhaps even better was my attitude and outlook on life. Simply by accomplishing this weight loss, my attitude and motivation has skyrocketed. I have improved in my social life and my earnings potential is going on the upswing.