more theory

[totient]

Every SF convention of more than 4200 people ever has been at least a 4-day con. We have no data to say, but I suspect that it's simply impossible to run a 5000-person 3-day event. It just won't fit.

Comments

[palmwiz.livejournal.com]

Mainly what won't fit is volunteer hours. People are too busy, as miss_chance points out below, showing off their corsets to each other.