Is It Ever too Late to Go to Medical School?

I ran into this topic last year while in the 1st year of my own grad school program.

http://www.reddit.com/r/askscience/comments/gavht/mds_of_reddit_is_it_ever_too_late_to_go_into/

If you don't know what reddit is, it's a community where LOTS of users make snarky one-liner comments in response to questions and links.  It's also a place where helpful comments can be made.  On occasion.

Comments, taken from folks who report being M.D.s and medical students:

Well, if you go into medicine now you'll be an M.D. by 36. If you don't, you'll still be 36. - soxfanpdx

No, is was not especially difficult to get back into things. In fact, I personally think being "older" when starting med school was advantageous in that regard. I entered med school with both a sense of urgency and the realization that I was doing what I wanted to do. Both of these things made the long hours of study easier. Also, I was recently married when I began, so I had lost the urge (for the most part) to spend my nights at bars/clubs/meeting people, which was a huge advantage over the younger students who were still on the tail end of the partying years.

In the end, I treated med school like a job, with homework. Lecture from 9-12, study at school until 4-5, come home, take a break, prepare for the next day from 7/8-10 and review what I needed on the weekends. Med school is work, but it's doable. - niridia

When I was an intern, I had three—three—co-residents who were older than fifty. They had all begun medical school in their late forties.

One had bummed around East Asia for a few years, teaching English, and then settled with her husband in the states as an Eastern Medicine practitioner.

Another had worked in medical labs her whole adult life.
The third had a PhD in chemistry and worked as a teaching professor for twenty years before deciding to go into medicine. - adoarns

My best friend in my med school class, I'm currently a 2nd year, is 45.
I apologize if you've mentioned it somewhere else in this thread but where do you stand as far as your prerequisite courses? If you didn't take them during your first time through undergrad then you have to factor in at least 2 more years getting the prereqs and then the mcat.
That said, go for it. My aforementioned buddy was an english professor, nothing to do with medicine at all and he did the same thing you are thinking of except he started getting the prereqs at like 41 years old.
Good luck, if you believe you can do it, you will. - markuscreek24

Of course there were negative comments.  Mostly about being a nurse or some kind of assistant to cut down on costs.  You can read more at the link.

Concerns for cost both time and money, the answer to the question posed above seems to be: non.