Agree re BGOs. I typically ask if someone "has visited," but only as ONE means of ascertaining if they're made an effort to familiarize themselves with USNA. In fairness, my area is easy driving distance. If I lived in Kansas, I'd not expect most candidates would have visited.
If you aren't able to visit -- and many candidates don't for financial or other reasons, do make the effort to read the catalog (available on line), books, etc. about USNA and/or talk to grads or others with knowledge about the Academy.