I wouldn't do 65 hours a week for any(*) salary. Way back when I was a naive, fresh from university grad, I tried it. The only things I succeeded in doing was turning out substandard work, and making myself physically and mentally exhausted.

My physical and mental health are more important than work. End of story.

edit: (*) Okay... you want to pay me a few hundred thousand dollars for a month of 80 hour weeks, I'd probably consider it, but it's not something I'd do for any sustained length of time.