It's fair that you had a different experience than I had. However, your experience seems to be very close to what I was describing. Cost got prohibitive (splunk), and you chose a different avenue. It's totally acceptable to do that, but your experience doesn't reflect mine, and I don't think I'm the exception.

I've used both grafana+metrics and logs to different degrees. I've enjoyed using both, but any system I work on starts with logs and gradually add metrics as needed, it feels like a natural evolution to me, and I've worked at different scale, like you.