Daniel,
The National is not really for the financially challenged. My guess is that most of the "average" collectors who go to this show take between $2K and $5K looking for specific cards/memorabilia. It's all relative as I probably have the least amount to spend, so the $26 per day is a sizable chunk for me. But that's OK, because as Ronnie Milsap says, "I wouldn't miss it for the world".