I think the financial considerations are very important. And as the previous poster wisely pointed out, those monthly payments will be a burden, especially when you take into consideration other needs in life, such as owning a home, supporting a family, etc. Having over $100,000 debt is scary (I'm probably looking at around $200,000 actually, if I choose the private school), and it is true that as tuition increases and doctors' salaries stay stagnant or even decease in the coming years, we're probably going to be facing a much different financial situation than what current newly-minted doctors are facing. One poster warned me to be scared, very scared...
Having said this, however, I think I would choose the better private school over my state school at this point. My reason for this is that ultimately I want to stay in academia, not as a research-scientist but perhaps through a school of public health or an institution dealing with health policy. True, one does not need an MD to do this, but I believe that the MD degree is the most flexible degree one can possess, which can lead to so many career options down the line. I want to be a clinician, but my reason for going into this profession is that medicine is so much more than curing or healing individuals, but it can be a tool improve the living conditions of people on a larger scale.
I think the private school has resources (in terms of professors, programs, departments, connections) that the state school does not have. Either school would give me a solid medical education and I will graduate in the end with a MD. It is probably true that if one works hard enough and gets high board scores he can get into a competitive residency, but the truth is someone with the same score from a higher-ranked school will probably do better. I could be wrong about this, so please correct me if I'm wrong. I do believe that the school you go to matters-- my undergrad has over 95% of premeds getting accepted into a med school every year, which is much higher than the national average. I don't have a stellar GPA (according to stats alone, I should not have been accepted at some of the schools I was accepted to...), but I do think that coming from a prestigious college matters-- to an extent of course, but it certainly did not hurt me. I also had a wonderful education over the last four years, owing to the academically enriching environment of my school. I have friends at a large state school and some have had amazing experiences-- but they had lots of intiative and those who didn't felt they were lost. Education is what you make of it, so I truly believe that anyone with the motivation and drive can achive his full potential anywhere.
Of course, I'm not completely convinced that the extra $80k or so will be justified in the end. I could be pragmatic and go to the state school, but I'm too idealistic to let go of my dreams for financial reasons. In the end, I'm sure it'll work out-- I'm not going into the profession to earn lots of money and retire early, but to make the most positive impact on society and love my job while I do it...
Sorry for a long post. I would love to hear your thoughts on this, as I'm sure others are in the same predicament. Please PM me if you have advice, suggestions, disagreements you want to share with me... I'd love to keep this conversation going. Thanks.