Your median income figure appears to be wrong. I think that you might be using median household income rather than median per-capita income. The $680k (sic) fi

Your median income figure appears to be wrong. I think that you might be using median household income rather than median per-capita income. The $680k (sic) figure is also in 1987 USD, and if you don't adjust for inflation then it throws your calculations off. See The College Payoff: Education, Occupations, Lifetime earnings [0] for a rigorous assessment. What you said about buying stock vs paying for college is interesting and something to consider. [0] https://repository.library.georgetown.edu/handle/10822/559300 https://repository.library.georgetown.edu/handle/10822/55930...