A monitoring system is more than just the TSDB. You've got all those pre-built integrations with everything else. All those log, traces and a nice GUI for your

A monitoring system is more than just the TSDB. You've got all those pre-built integrations with everything else. All those log, traces and a nice GUI for your user to actually be able to use them. Currently in the later stages of a Datadog project. Which of course means we are working to get the cost down a little. Modern apps product a lot of logs, traces and metrics. SaaS solutions for monitoring are usually great except for the cost. You can build (I'd advise going with the Grafana stack) but I'd only go down that route if SaaS was way too expensive. Monitoring always takes a long time to setup whatever you do. Manually setting up every app, team, server just takes ages.