It only costs $ to get them scored if you want them entered into NASHC record books. I wouldn't bring every shed that you have found, maybe select some of the better ones that you want people to see. I also wouldnt have them all scored. Maybe a couple if you are curious to see how close you are on scoring. After the sheds are scored, they are tagged and put on a couple of tables for people to look at. Some guys bring a small bag or tote and keep it in their car until they feel comfortable bringing them in. Hope this helps a little.
"A bad day of shed hunting is better than a great day at work"