Yeah, there were quite a few people there for such a small venue. Admission was $3 for access to vendors and a handful of arcade games and two pinball machines (Ripley's & AC/DC). I spent $5 on an Atari Lynx shirt and sold ~$260 in action figures.
That would make sense then. The record conventions here are fairly big but they're all vendors, hence why they're only $3. Plus they have 10 shows a year (last I heard; sadly, I hadn't been to one in years) and have had them for years and years, so it's not a problem for them to get a good deal with the hotel (meanwhile with the gaming expo here they had problems with hotels' management and couldn't get a decent rate for a couple of years as they bounced around a few places).