These days, we all know that computers bear the brunt of being always powered on for one reason or another. Among the reasons include:
1. Uninterrupted Downloading
2. Timid Power on and Power off by Users
3. User forget to turn them off
In this time and age, it would be best to take into consideration the fact that we need to conserve electricity and by all means, computers make use of it. While to most, the cost of leaving it on is something that they can afford, the real issue here would be the computer life and of course the energy resources which we are really eating up a lot as of late.
Awareness of the energy conservation efforts through the proper use of computers and maintaining them is something we need to attend to. People today could care less but the fact of the matter is, we can add that extra effort that will benefit us the most. Heat levels in your computer can just be imagined. Remember that one issue inside CPUs today is cooling and leaving them on with auxiliary fans to do the ventilation and cooling habits is something that you should really address as well.
If we want to make use of a PC that will last longer then perhaps it would wise to consider giving them some rest periods. This is not enforceable. All I am saying is that computers needs some respite as well even for an hour. Also, save on energy since the savings you can get from these efforts can turn out to be enough savings for future needs such as a computer upgrade once new ones hit the market.