Same here - none of my friends are using it for social interaction, and now that I've switched off all the crud (games, etc) on Facebook (or just ignore it) and use it only for wall updates and the occasional photo upload, there's just no incentive to move.
My problem is that my friends on Facebook don't want to make the switch. I would LOVE to tell Facebook to piss off... but if none of my friends are going to follow me to Google+, then there's no benefit to making the move myself. I liked the idea of Google+; it was something new, something clean, uncluttered and unsullied by ads and it interfaced really nicely with a lot of other Google applications like GoogleTalk. But until Facebook finally pisses everyone off to the point where they don't want to use it anymore, then Google+ will be left by the wayside. That's the only reason it was a flop; the idea wasn't flawed, but putting it into practice was. I wish people would stop sucking on Facebook's teat already.