I’d also say that going back to school is a good way to update your life and change your profession. I’m a firm believer in getting government student loans and using them to go to school. They’re cheap, low interest, and the US government is usually very nice about letting you pay them back. I’m not so sure about other places around the world though.
Another take on the student loan system: http://consumerist.com/2010/09/student-loans-gateway-drug-to...