Interesting view which I had not thought of previously in quite that way. Devil's advocate: My old workstation has a 440w power supply but uses much less than

Interesting view which I had not thought of previously in quite that way. Devil's advocate: My old workstation has a 440w power supply but uses much less than that most of the time. A small percentage of the total electrical power that my house uses. What pressure is there to switch the workstation for a more efficient PC?