[gedrap]

All is good when it's working well, but when something's not right... well, you really wish that you had that monitoring.

The truth is that most load balancing solutions are capable of handling _a lot_ of traffic, way way more than the majority of the people need. So performance is not a huge concern, typically.

However, if you are at the level where it does actually matter and want to use nginx, chances are, you'll have no problem paying for the premium version.