Yeah, the comparison with S&P was for fun, I hope. Because in one case you're sacrificing 4 years of opportunity cost, then working full-time to make the ROI n

Yeah, the comparison with S&P was for fun, I hope. Because in one case you're sacrificing 4 years of opportunity cost, then working full-time to make the ROI numbers that the author use for comparison. Whereas, my understanding of the S&P is that you don't have to work 40 hours per week for it to give you returns ;). So, if you had your college money as cash you could put all that in the S&P, then work full time without a degree to then, most likely, have an even higher ROI. Of course, most don't have the significant cash for college lying around.