Would it be possible to create a price option for even smaller companies, demo sites, etc, at a higher rate?
Say, what if the owner of a small blog wanted to use this to do really fine grained analysis of users actions but they average 250 hits a day?
That said, pricing is really hard to get right. There's basically zero chance we nailed it on the first try.
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.
Pricing is hard. There are a lot of good articles and discussions on HN if you do a bit of searching.