You definitely didn't get it right. =) That's one of the joys of startup life, A/B test it until you do!

Even for a "successful" site (>1mm MAU) $2,000 a month feels insanely expensive. The performance difference between this and GA ($0) is not high enough _initially_ to offset the sticker shock.

Look at NewRelic, Tracelytics or even Mixpanel (expensive IMO) for better pricing levels. You've built the equivalent of "hosted snowplow" (https://github.com/snowplow/snowplow) with a nice GUI and tools, you should expect to charge something much closer to cost than your current approach appears to.