A few thoughts after reading the thread:

1. You apparently made a decision that VERY few people would make (DO over MD). That doesn't mean it was the wrong decision for you but you aren't going to be successful convincing others that it was a good decision.

2. Medical school course work is absolutely nothing compared to residency so buckle up.

3. Medical school course work is no harder than the course work for many other advanced degrees so justifying physician income by the difficulty of it isn't really a compelling argument. Arguing that physicians deserve their salary because of time invested in gaining the education also doesn't fully justify it as there are other fields of study requiring similar time investments that don't pay as much. Physicians are paid what they are because the service they provide is highly valued by those receiving it (IMO).

4. Arguing that DO schools are just as good as MD schools because MCAT scores are similar - aside from the fact that it is untrue - is a logical fallacy. The quality of a medical school is not determined by the MCAT scores of its students. How about comparing USMLE scores, publications in peer reviewed journals, or the percentage of students who match at their first residency choice? Those statistics would be more helpful although they would also fail to show the entire picture because DO students just aren't going to be invited to even interview for the most prestigious residency slots, period. In other words, student A from DO school X who matches at his first choice (which is family practice residency at a community hospital) is not nearly as impressive as student B from MD school Y who matches at his second choice (neurosurgery at Mass General).

5. Arguing that DO schools are "harder" because they include a course in chiropractic? Seriously?