Google is testing a new Google shopping ad layout, where they group the ads by pricing. For example, they may show ads of products for prices above a certain price and then below a certain price.
Mary Weinstein from CPC Strategy notices this and emailed the screen capture to me, which we covered at Search Engine Land.
Here is how the test looks:
Here is how the normal ads look:
If something like this launches fully, pricing can become more of an issue for online retailers using Google Shopping Ads.
Forum discussion at Google+.