Agreed -- is this something that would benefit from writing LDAP/AD integration for? If so, how much does that boost the sale price to all the other potential

Agreed -- is this something that would benefit from writing LDAP/AD integration for? If so, how much does that boost the sale price to all the other potential customers you could get from it. Do his requirements actually fit in line with the general 'enterprization' of the software? Is writing him a one-off, multi-user/single-password authentication scheme help or hinder that enterprization? Price accordingly.