Those are more for larger scale shows that are harder to police. The Cellar is way easier to see what people are doing.

I used one of those for Kevin Hart. They're actually way efficient to use, but no - small clubs don't use them. In fact, I saw Chappelle not long ago and they just told people to not bring phones in. People did, of course, and I didnt and had to figure out how to get a damn cab home.