Noah has it pretty well nailed down as to why some of the regular vendors weren't set up. I know of two who were on vacation with the family; one who decided not to do a slow summer show due to his past experiences with the June show. As for myself it was a bit of a combination of both plus it's our busy season at the fort and I chose last weekend to be my work weekend as a trade off for several others off. (See you west Pa. folks at Bushy Run this upcoming weekend I hope!)