Introducing Path 3.2: Private Sharing, Inner Circle, and Premium
blog.path.com
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And people will know they aren't in your "inner circle" too then. Something I really like about g+ is my groupings are private.
Isn't the whole point that it doesn't have ads?
That being said, stickers seem to work. Line makes 30% of it's revenue ($17M in Q1 2013) from stickers. More here: http://start.toshiba.com/news/read/category/Business/article...
The advantage of both stickers and subscriptions over advertising is that you don't need a sales team or the tech for serving ads and providing analytics.
One thing I'd really like is the ability to buy photo books, journal, those sorts of things, made from the photos I take, and information I provide in checkins and updates throughout a journey, holiday, etc. It would be great to get home from a trip having checked in to everywhere, taken photos, posted thoughts and feelings, etc, and get the whole thing in a nice big physical book similar to the ones iPhoto in iLife can produce.
And the great thing is that now people know when they're in your inner-inner circle - which also means that they know when they're in your outer-inner circle. Which is better than being a mere facebook friend, I suppose.