Ok, so you're doing configuration tasks for routers/firewalls and so an via CLI...wouldn't you consider that inconvenient? I mean if you have a large network with many devices like routers and firewalls and you have to connect to each one to do configuration changes, this can get very annoying, can't it?
Wouldn't it be cool if an NMS could offer you the possibility to configure those devices directly within this tool so that you don't have to connect to each device separately via putty or some other CLI?