Back to the original point-
I am one who did quit.
Sometimes i still can't believe it. As a medical student, I was considered hard core by my fellow students. Surgery seemed like the most natural place for me to everybody. My 3rd year rotation occurred before the 80 hr work week. We took call very much the same as the residents did. On the trauma part, the entire team took Q2 call, with a post call clinic one day a week. I loved it. I loved going to the OR and couldn't wait to be the one doing the cases.
Started residency at a different program. Slowly my enthusiasm waned. I learned I had a low tolerance for BS. The BS that bugged me wasn't within the department. It was the dumb stuff being imposed by the hospital, increasing every year (eg instead of simply ordering heparin, now there is a form that must be filled out). Patients seemed to become more demanding and unreasonable. As I moved up in residency my schedule was more like that of an attending. I was staying more often in the OR late. Then I'd have to round, and would encounter visiting family member (new to me) who would bombard me with questions (all these questions I've already answered for pt and primary family member). At 8 or 9 pm, after rounding in the am, being in the OR all day, when I'm tired, my back hurts, and I've wolfed down crappy food, I don't want to deal with this. I just want to go home.
Once the novelty of the OR was gone, I didn't love it enough to put up with all the BS. And I learned that I absolutely hate doing laparoscopic cases. The bad ergonomics made my back pain much worse, and I hate the frustration of it. I struggled with it more than my younger counterparts. The cost/benefit ratio no longer made sense to me. It was a difficult decision.
I'm female, and started medical school in my late 30's, so I guess you could say i had some predictive factors for attrition. At the end of the day, as with any specialty, you can't get a good feel for what it's really like until you've been in it for a while.
I still have a soft spot for all things surgical, and sometimes I miss the OR. I'm working a moonlighting type job now to pay down some debt before I retrain. I haven't decided yet what field, that is a process I'm working through right now.