I just wanted to give you my 2 cents coming from someone who is in a masters program at a DO school. First, I love the program, its much more then a "GPA boost" in my opinion. You learn quite a bit about yourself and it definitely has a maturing effect on you. From thesis writing to research to tons of presentations and thesis defense you learn quite a lot of tools that the regular joe doesn't have. Also, maybe you are like me, where in my undergrad, I did research but it was not human related. So this gave me experience in human related research as well. Furthermore, it real gives you a up close look (and motivation) at the life of a medical student. We've shadowed doctors, done volunteer work, etc to see what the medical field is all about...but has anyone ever thought of shadowing a medical student...seeing them take 23 credits a semester, watching how they react when they have 4-5 exams in one week, seeing them when they come out of the anatomy lab at 11:30 at night, seeing them go into the library at 9am and leaving the library at 8pm to see that they are still there, seeing medical students cry when they fail a exam. These things are reality and will be the same things we go through when were in medical school. Finally, in the end a masters degree will make you more qualified then a person without one. Which is always something to think about when you are applying for possible residency positions sometime down the future. So, I just wanted to add another perspective. It will ultimately come down to what you feel is best for you. I'm sure you'll get in this cycle so there no worries. Good luck to your future goals!