Energy efficiency gains mean that usually a new computer can pay for itself after a certain number of years or months, in terms of electricity savings. And fas

Energy efficiency gains mean that usually a new computer can pay for itself after a certain number of years or months, in terms of electricity savings. And fast hardware is key for performance in certain careers, such as software engineering. Even for a working class casual user, it would make a lot of sense to upgrade an old power hogging computer to a new netbook. It would be better in every way, and still likely save money in the long run. Not to mention time.