Google doesn't stop doing these local, espesially hotel specific tests. This one shows the price slide filter but with a graph overlay of the prices of the hotels on the graph. Each bar must represent the number of hotels within that price range, communicating to the searcher where they should adjust their price filter to get the most selection for the price selected.
Here is a screen shot from Sergey Alakov on Twitter:
Sergey explained "the chart shows how many hotels there are at each price point." I do not know how he sees all these tests but he does.
And I suspect many of you, the readers, might be already saying, why do I cover all of these? Should I stop?
Forum discussion at Twitter.