Here are a few points worth making to a client. Adapt and edit it however you like.
You can create an online community in less than an hour. Any of your employees can. It doesn't require any difficult technical knowledge. Technology isn't the challenge anymore, it gets easier every day.
Relationships have never been harder. Especially ones that benefit you. Persuading people to join, motivating them to participate and fostering deep relationships is the difference between success and failure. If you're like most people, you don't know where to begin.
Budget more for building relationships than the interface. It's less risky and more successful. Don't spend one big sum on the interface. Spend smaller amounts developing it as the popularity grows. This even rewards your members, they will appreciate you for it.