Physical looks are one thing, when younger women resort to getting boob jobs and other surgeries just to look better for men it's pretty vain and screams "I need attention".
As women mature they usually don't carry around all of the drama that most younger insecure one's do. That's hot.
Personally, I think a hot milf is where i'm at right now.
It also screams " I, deep down dont like myself and am so desperate to like myself, i dont care who knows that i've altered myself in such a public fashion."