The problem with exhibition style is that the judges and the participants end up completely exhausted because they're presenting/pitching a few hundred times at

The problem with exhibition style is that the judges and the participants end up completely exhausted because they're presenting/pitching a few hundred times at the larger events... and some people just can't take a hint that it's time to move on to the next table or something like that. At least that's what I've experienced. And from a judging perspective it's important that judges give equal consideration to all the ranges of numbers... statistics can be a cruel mistress as youtubers like CPG Grey frequently point out.