I do carry everywhere, and could've really used some sort of RMR cover last week. Something like Coastal's, not the OP pics.
This environment was a little extreme of course, but even loading and unloading from the truck, with the wind gusting occasionally, the lens on my Holosun picked up a bunch of dust. The sort of place where just talking leaves you with grit on your teeth. Nothing I couldn't shoot through, but a cover to keep it cleaner is something I'd buy. Hint hint...