That is reasonable when it is one of my main DB servers that I might need to restore something to at a moments notice and has high importance to the business. But its not going to apply to some generic server where a not so important app happens to ...
...why the agents are licenced in such a way that people feel the need to avoid them?
When I am already paying per machine for backup, requiring agents per machine on top is just a kick in the teeth. Options that apply to the whole media server arn't...