FWIW I've found influxdb considerably easier to install and manage than graphite (graphite doesn't play well with virtualenv, which makes dependency management horrible, compared to influxdb's single static binary)

Also, I can see logging dictionaries being much more efficient and useful than logging single values -- with graphite if you want to track page hits per section of your site (of which you have 10) per user (100) per browser (5), you end up with 5000 individual metrics, and you need to have thought of them in advance. With influxdb you can log {"section": "front page", "user": "bob", "browser": "firefox", "hits": 1} as a single metric and then use an SQL-like query to filter by section / user / browser (or any combination of those) as and when you want to.

TBH the only thing I miss going from graphite to influxdb+grafana is the tree of metrics (grafana has autocomplete once you start typing, but you can't just browse) and a few of the rendering functions (moving average).