I went in around 1 PM on Sunday, never been to this show before. My local show is in Chantilly, but I was in the area. A few vendors in Richmond that no longer go to Chantilly because they said they weren't making any money at Chantilly. Cheaper entry fee for us to go in. $12 in Richmond vs. $17 in Chantilly, but smaller show. Ammo is expensive. Cheapest I saw 9mm brass was $17.50 if you bought a case. Most were around $20 per box. I'm not sure if your Cabela's has ammo, but my brother in northern WV said he was getting Herter's 9mm for $17.50 in Cabela's up there.
I found a Kydex holster I was looking for my police trade in S&W 640, so I was happy. Also found a laser sight I "needed" from Kenzie's. If you ever want to buy an optic, the cheapest I've ever found it was with cash at Kenzie's at one of these gun shows.
Not crowded at all. There were some empty tables in the back left corner of the left building. I enjoyed it. If I am in the area again, I'll go in.