Leaving equipment on all the time is an excellent idea. I've always wondered if it really increases the electricity bill. Most IC's are built to run 100,000 hours straight. The problem is when you turn it off and on you send a surge of electricity through a cold circuit. Cold circuits conduct more electricity for a brief period. This can damage components. Also, notice when a lightbulb burns out; when you turn it on. You see a flash and then poof. Rarely does a bulb just burn out (unless there is a vacuum seal failure).