you should think about a load balancer when your application starts getting a lot of traffic.

hey everyone, i wanted to start a discussion about load balancers. when do you think its the right time to introduce one into your system? ive seen them used when traffic spikes, to improve availability if a server fails, and to allow for maintenance without downtime. basically, if performance and reliability are key concerns, it seems like a load balancer is a good bet. what are your thoughts and experiences? are there other key indicators you look for