My vocabulary and knowledge has been greatly enriched from these classes. Our teacher provided many of the origins of how the signs came to be. I was always interested in the study of etymology when I was younger. I took French and Spanish in school. Though I couldn't hear or speak them well, I could read and write them decently. I noticed how many words were similar with spelling and meaning. This interest is flowing over into Sign Language, wanting to know the origin and history behind the signs.
I would recommend anyone relocating to sign up for classes and not only will you learn the idioms of the area, you will meet interesting people in your new community.