Interesting. With regards to the unit of pricing, our thinking was quite the opposite. There's a high variance in value across your userbase, but our previous (

Interesting. With regards to the unit of pricing, our thinking was quite the opposite. There's a high variance in value across your userbase, but our previous (per-user) model would price them the same. This was an issue. We tried to match a user's value as closely as possible by pricing per visit (instead of per user). This assumes, of course, that the frequency of a user's visits correlates closely with their overall value, which is certainly imperfect in some cases.