Is judging worth the outcome

I am planning on a MOPAR show this June and there is a small fee if I want my car to be judged. I was told the car was original with the exception of radio and 2 stage paint when I bought it. I don't have any great expectations of awards or any acknowledgement but I would like to know how complete my Swinger H code car actually is. What is the general opinion on judged shows.
Thanks, Jerry