I'm not saying Facebook is useless - it just isn't the tool for me.
I get updates from friends, but I prefer to have them face to face, say, over dinner - which seems to become a bit of a lost art for many. Just look around, even sometimes you see groups of people sitting together in pubs, and there faces still glued to their smartphones only. That's what I would call wasted opportunities.
And I finding out about interesting people? Was that really something new? Either way, I seem to find out about them with or without facebook.
Free VoIP features - nice - I've got that with my phone (flat rate)... Yes, for that I pay, but I'm free of advertising - which I value more. (Even here on slashdot, for a while there was an option to just pay for ad-free pages - sounded great to me, and I happily paid some money to slashdot to have ads suppressed -- yes, an ad-blocker would achieve the same, but I do see that even slashdot might occasionally need to make some money)...
Messaging? Ever heard of email? Sounds fairly easy - no ads on my mailhost either.
Stupid casual online games? Sorry -
Seriously - congrats to you, if facebook is the tool for you. It isn't for me.
And I trust that you will not engage in too many new products / services for extended periods if you don't see them fulfilling any needs for you - you just wouldn't have the time for facebook any more.
I've tried lots of services on the Internet - but I also stop using services and deleting my accounts, if I don't see the point of them for _me_.