Attractiveness of women who hit the wall aka Pam Anderson

I never get why men still date old scumbag like Pamela Anderson or Carla Bruni ? These hoes sees the world dick until theirs mid forties. Then, when they reach 50s they manage to find a guy (often younger) to be in a relationship! How can men still desired these used ladies ? What's the glory , very confused about that hahah..