Why Sysadmins are happy with Grid Control

A friend said Sysadmins are happy with Grid Control when they see that Grid Control can capture and store a history of CPU and Memory utilization for each host server. I replied:

Thats a good one mate. The sysadmins would definitely be happy with that
history. Also all that is stored in the Central Oracle EM Repository instead of
files all over the place on different host servers.

Its just a matter of knowing what is possible. I have shown a lot of managers/techos what can be done with Grid Control with their Oracle databases, and all of them have been pleasantly surprised if not outright amazed. 99% expressed an interest to use Grid Control to simply make their lives easier.