As have I. And I agree with @ChoatieMom 's statement above. My general guidance on these forums is that, for admissions purposes, no college will have an expectation that students should take AP exams if the school does not offer the courses. This is especially true, IMO, for boarding schools.
Having said that, I took a lot of AP exams, mostly for crap and giggles. It will vary by school and by subject how much extra preparation is needed for these exams. How much credit one gets is totally dependent upon the college, but most top private colleges tend to limit AP credit, if they give it at all. Aside from credit though, in some cases, a top score on an AP test may waive an intro course as a prereq for a more advanced course. For instance, next semester, I’m taking an upper level psych class as a gen ed requirement, which has intro psych as a prereq.