Case 1: Spend $80k per year on Brown, total $320k. Spend $400k on medical school. Total for all education $720k.
Case 2: Spend $0 on OSU. Spend $400k on medical school. Total for all education $400k.
If your parents can pay $320k (which means that their income/wealth is rather high for “middle class”), then it may be better to choose case 2 so that your debt at the end of medical school will be $80k instead of $400k as in case 1. Much lower debt will allow you more career and life choices, instead of feeling the pressure to choose the highest pay level at every choice.