UGGS affect people's posture---if you watch someone wearing them, they seem to slouch. I think they look kind of sloppy, myself. For someone who's used to the structure of cowboy boots, I don't know if a softer boot would be as attractive or comfortable.
If I ever see a man wearing ugg boots I"m going to trip him then steal his ugg boots and burn them...I never want to see a man wearing those. Next thing you know they'll be stealing their girlfriends lulu lemons as well and then taking our purses to the mall :S