Here are a couple cool posts about the unreasonably high cost of even applying to medical school, and how the high cost serves as a barrier, blocking many would-be excellent doctors from pursuing their dream. Check them out here and here.
I can definitely relate. Between the almost $300 cost for the MCAT, the minimum $100 application fee per school, and flights to any interviews that I get; it adds up to thousands of dollars. I'm fortunate to be heavily supported by my family, and I could only imagine how challenging it would be to even apply to medical school with very limited financial support.