David, I understand your points re: how Google Plus Your World works, but in researching this over time, I'm discovering that while there are a number of locals on G+, very few of them are using it, either with the +1 or in any other capacity. Very few are doing more than using G+ to post their own blog posts. And for me, the real promise of a "Your World" is in local search. The impact just isn't there. I have been on G+ since day one, and I've seen nothing there to really hold me. Which is why when I talk to people around here (marketers, business folks, and general public) they all say they are using it the same way. There is no draw.
And in Google's own documentation, they refer to the +1 as a major signal as to what folks like.
And that's my point, Your World doesn't really work as intended because most folks are happy without G+.