I bought one Friday at the GSCA tent. Maybe they ran out. They did have a bigger crowd than they have been having. I also bought one of the Michigan Chapter event shirts.
Were they actually out on display? I walked by on Thursday and Friday and I didn't see any. I did find it odd that they didn't have any. It can't be a money loser.
When I bought mine, they were in the cardboard boxes on the tables. I don't think they had any on display at the time. Not having them displayed may not have been a good idea.