I recently created a dedicated fb account to connect with some people, and I was very very surprised how dull fb is. I tried it back in the days and felt it had some value, in terms of UX and "connection" but now it's all foobar and gimmicky. Very odd. I would never had expected it to reach 2B so fast. I wonder if it's mostly because of mass + [o]auth capabilities so ubiquitous now.
It's a social network. If a lot of your friends are not on it (or are not active on it), expect it to be dull. Most people use it as a clubhouse not a personal journal.
If you friends don't post, then your feed will largely consist of advertisements or pointless posts from pages.