I will probably go. It may be like a gun show. When I first got interested, I went to every show in Raleigh, and several outliers. My knowledge level went from "total imbecile" to "dangerous fool who thinks he knows something," so I quit going. You don't get "deals" at places like this. You do get knowledge, contacts, and a sort of environmental awareness of that "world" of thinking.
I am still in the "total imbecile" phase of overall prepping, so I will probably go.