You're right and we're in the midst of transitioning to a self-service approach from enterprise. Much more in line with what we're trying to accomplish.
1. https://asana.com/pricing 2. https://www.vendr.com/pricing
That said, in the interest of giving you a real answer... The numbers we've thrown around for the base package are sub-$100/user/mo and the mid-tier sub-$500/user/mo. Tailored pricing for custom solutions.