I have no ambition to run again. I never enjoyed when I was doing it and I'm just getting too damned old to do things I don't enjoy just because they're "good for me." I'll walk, I'll ride my bike, I'll probably take up martial arts again, I may begin dancing in my living room. I have no interest in ever running again.
As an added bonus, by not running, I won't have to worry about my boobs bouncing too much! ;D