Would you pay $10 a month for a bi-directional Google - LDAP sync service?

A lot of startups and small businesses are using Google apps as the primary source of their users and groups information. We are building a simple way to keep the Google apps users and groups information in sync with your LDAP service. This is bi-directional, i.e., changes in one is synced to the other.

We plan to make this available as a subscription service. If this seems something useful, would you be willing to pay $10 a month for an organization under 50 users?