Do you see Google showing prices (or any rich snippets data) for ANY listings in search results? From competitors? or anyone?
I don't. I only see the Rich Snippets used in Advertised links in Google and Yahoo search results.
Qbasix, I can't say that definitively, but when I run Google searches, I don't see any of the Structured Data defined by the Rich Snippets in any Google search results anymore - other than in the paid ads.
Google at their own discretion decides what rich snippets to show if any in organic searches. I have competitors who's rich snippets show up and Amazon listings pretty much always show rich snippets. I use to have all of my ratings, pricing, availability showing and lost it all. For a long time if I did a site:www.mywebsite.com it still showed all that info but even that has gone away. I was told by them that they do not disclose why they show up or why they don't but as long as your info is showing up in their testing tool you have done all you can do.