I run into them occasionally. I work in a hotel, and one day I was carrying my 5.11 CUB Master karambit(I'd just got it, was carrying it to see how it rode in the pocket and such), and one of our guests saw the ring and immediately knew what it was, cause he worked for 5.11 and recognized it. Years ago I used to work at Cracker Barrel, a guy bought something in the gift shop area, and then pulled out a knife to open it. I asked what he carried, and it was a Benchmade(I forget what model), then he told me he also carried a Microtech auto(he was law enforcement, so he was legally able to carry it back then), and also had a Case Peanut on hand as well.
Guy at work this morning was up front when the newspapers were dropped off(they come bundled with a zip tie around them), he asks if he can get one, I saw yeah and before I can hand him the scissors, he whips out a knife and cuts the zip tie. I asked him what it was cause I didn't get a good look, and it was a Kershaw Cryo, he told me he always carries a Kershaw, the Cryo was a new one cause his kid recently bought it for him for his birthday.