Pentax is doing great here in Houston. I can get pretty much any lens Pentax makes, along with all their accessories, for great prices. And best of all, they'll deliver it right to my door!
Oh, you were talking about brick and mortar?
The "real" camera stores I visit on rare occasion have some Pentax gear, but it's along the lines of Olympus or (used to be) Sony. Nothing more than a couple of bodies and a 3-5 different lenses, and a few random accessories. Enough that you know Pentax is around, but certainly no threat to the big two. Which is why I opened my post as I did.