Guess it depends on what else you'd do with the money.
Yeah, I agree with this. Are you going to use it to save for retirement? Pay down debt? Travel? Do charitable work? These seem reasonable to me.
Are you going to use that money to buy a BMW? A huge house that you don't need? Throw your kid an extravagant wedding? In those cases, I think money is better spent on education.
Education, especially education in the right environment for the kid, has all kinds of intangible benefits for its own sake. Of course the debt burden is something to definitely consider, and in many cases it's not worth going hugely in debt for a degree, but all other things being equal, I think there are worse ways to spend your money. But perhaps those are just my values.