We write a lot of event logs from .NET applications and others. There are use cases in which you need to read them by logging into the actual machine. It is a cumbersome process if you have multiple computers set up for your application.
The event viewer application allows you to view the event logs of other machines, as long as you are an administrator on the other machine. All you have to do is open the event viewer, go to the action menu and choose connect to another computer.