In a crowd of maybe 5k people a couple weeks ago, I spotted two Pentax cameras - a blue K-S1 and one that I think was a version of the K-3. These are mostly tourists roaming around a large farmers' market. By my observations,
-Anyone taking a photo of a group of their friends was using a cell phone.
-Anyone spending 15 minutes to take photos of a fruit stand at several different angles is using a Nikon DSLR.
-Anyone carrying a large camera but not actually using it had adapted some monstrously large lens to a sony mirrorless.
-Anyone with a "large point and shoot" had a Canon Powershot G10 or newer model slung over their shoulder (these seem pretty popular).
-Anyone actively walking around with their eye to a viewfinder clicking away is a hipster teenager who had just purchased a (new to them) Pentax k1000 at the market and it had no film in it. They often reflexively attempt to chimp.
-Anyone sheepishly hiding a camera under their coat had an Olympus (these may be as rare as Pentax, but I still see the odd e3/500 kicking around).
I'd say that Pentax DSLR's have increased in relative popularity with the overall declining DSLR using crowd, but this may simply be observational bias. At this market, I usually spy at least one Pentax per week not counting my own
, and the abundance of Canon Rebels seems greatly reduced compared to a few years ago.