You'v got almost 15 years experience. You still remember your college. Forget it. Dont try Harvard and Stanford though, they are really looking for kids.
It's never too late to learn, even for MBA! In our class, there is a 43-year-old-guy. The most critical thing is to make sure that you know why you need a MBA and how it can help your career development, and tell your story in a compelling way to the admissions.