I've been to two shows and learned a lot at both. I showed my two boys and really wanted Edgar who we had since he was a baby to do well. He got a second and were a little bummed but since we aren't going to breed this soon didn't matter. I did however learn a lot by going to the shows and even if you aren't going to breed I think worth going just to learn from people who are devoted to chinchillas.
If you are going to show I'd recommend going to a field day where they go slower and allow questions. You can learn lots. Also beware as it's really easy for a chinchilla to follow you home. That's how we got Jackie.