>4: The cost isn't that bad, when you spread it out over a career. My degree & living costs cost about $60k NZD (~$40k USD). That's $1k USD / year, or $.50 per hour. Considering how my income has multiplied in the few years since I've graduated (SF wages help tremendously here), the actual cost is barely anything, even when you control for the opportunity cost of studying.

You also need to take into account the opportunity cost. You could have been working at the time, earning $XXk/year.