[berkay]

We chose not to do so, but I can tell you why you'd move to non-public pricing (at least have a non public pricing tier).

As much as people love to blame vendors, this is mostly due to dysfunctional nature of the large enterprise buyers. They are addicted to discounts. First the buyer contacts you asks for one then after everything gets said and done done, procurement gets involved and ask for more discounts (seen as their job). Having listed pricing becomes a problem when going through such process, so most vendors either choose not to publish their prices, or have a tier for the enterprise that is not published.