HCP, the promoters of the show said they "didn't want any assualt style firearms or high capacity mags at the show", and what Tanvil said about the show. It's a show for anyone that like to do things in the outdoors, from casual campers to all out hunters, it's a 6 day event (well was) in a building complex that has almost a million square feet and usually the entire thing is filled each year for this event.
So this is a big deal that this show was canceled, I had a feeling this was going to happen when I started seeing some of those big name companies pulling out, even if it didn't happen this year I figured it would be hurt financially that it wouldn't be held next year.
And Karl started a thread about it being canceled too, just adding this to link the two threads together.
Harrisburg Show CANCELED! Blames NRA