When talking about Facebook marketing, community pages might be best bet for marketing than the business pages. Why? Because buyers may tend to trust more on their friends than those found on the walls of business pages.
Business pages are for branding, exposure, and visibility. But community pages can drive more sales. Users tend to trust more on their friends (which is obviously normal) than what a business page or brand would say.
So if you have a business page, do not stop from there. Get involved into the community pages or start your own community page where your clients can interact.