Now the Pew Research Center has looked at the issue in a different light - the rising cost of not going to college.
And it would appear that there's hard evidence that it is worth it to get your degree, although I still would caution that you have to be careful in how much you pay.
Pew found that young college graduates are outperforming their peers with less education by all sorts of measures - from poverty levels to annual income to the ability to become employed full time.
College graduates between 25 and 32 - so-called millennials - earn about $17,500 more annually than employed young adults with a high-school diploma or those with its equivalent such as a General Educational Development certificate, according to Pew, which surveyed 2,002 adults and supplemented its analysis with economic data from the Census Bureau.
Pew also noted that the income gap was significantly smaller in previous generations. "In 1979 when the first wave of baby boomers were the same age that millennials are today, the typical high-school graduate earned about three-quarters (77 percent) of what a college graduate made," the report said. "Today, millennials with only a high-school diploma earn 62 percent of what the typical college graduate earns."
Poverty rates are higher for people with only a high-school diploma or the equivalent - 22 percent compared with 6 percent of today's college-educated young adults. This is a huge difference when you consider that only 7 percent of baby boomers with just a high-school diploma were living in poverty in 1979, when they were in their late 20s and early 30s.
Today's young adults are the best-educated generation in history, and as a result are more likely to be paid more. Millennials with a bachelor's degree earn a median income of $45,500 compared with $28,000 for a high-school graduate. They are also significantly less likely to be unemployed than peers with a high-school diploma.
Nonetheless, a degree doesn't guarantee that you won't face economic hardships, Pew noted.
"To be sure, the Great Recession and painfully slow recovery have taken their toll on the millennial generation, including the college-educated," the authors of the report wrote. "Young college graduates are having more difficulty landing work than earlier cohorts. They are more likely to be unemployed and have to search longer for a job than earlier generations of young adults."
Pew asked the young adults if they had major regrets while in college. In retrospect, people said, they should have prepared better for the type of job they wanted, studied harder, started their job searches earlier or chosen a different major. The top regret: Half the college graduates surveyed felt that getting more work experience would have put them in a better position to enter their chosen career field.
Pew asked the college-educated folks if college was worth it. The overwhelming majority said yes.So college does pay off for a lot of people. But don't confuse that with college at any cost. You need to be smart about what you can afford and get some work experience while you are still in school.