We've talked with truckers occasionally, such as to tell them they have something loose flapping in the breeze or something that doesn't look quite right. The only way to talk with them is by CB so we keep ours. We also turn it on if there seems to be a major traffic problem ahead. A trucker near an accident, for example, might say to stay away from the left lane which is blocked. And, as someone else mentioned, there are weather alerts on it. It can be useful, although not nearly as much as they were a couple of decades ago.
ArdraF