[rogerbinns]

You can also implement sampling in your client/site since you are unlikely to need every detail from every session. For example in my use cases there is a percentage probability that the session events will be dispatched. That starts out at 100% on initial deployment and then goes down over time as the user base builds up. We also mark some serious events as always dispatched.

You can amuse yourself by looking at Google's pricing. They have a choice of free or $150k per year!

At my startup we would gladly pay Mixpanel's prices. Unfortunately we found the functionality to be poor, and support to be rather bizarre (every response was a bunch of platitudes).