Retire? You mean like not have a productive job, sit on the couch and wait to die? I'd rather not ever get to that point. I just want to be healthy enough to keep doing what I enjoy doing for as long as I can do it. But if I had a crap job with a crap company, I wouldn't be seeking retirement, I'd be seeking a new line of work with a new company. I just did that (again): today is my last day with an employer that I'd grown tired of. I'm off into the Great Wide Open with a new company starting next Monday.
Worst case, I'd want to go part-time by the time I'm about 60 and just do consulting. I took two and a half weeks off over Christmas and after about a week, I was so bored that I didn't know what to do. I can't imagine living like that for years on end. That would be Hell on Earth for me.