It is interesting how different the few voices here are from the many voices in the surveys.
Has anyone considered the cost implications of a 5 day conference vs a 3-day event? By adding 2 days, you are upping the meals and lodging by 60% when a number of people who attended the original could barely afford to attend. We need to remember that there is a spectrum we all fall on between FI and "FInding a pot to piss in." Also, while a 5-day festival/conference sounds fun, anyone who has attended a week-long music festival will let you know that things taper back DRAMATICALLY after day three of the party. It is impossible to sustain the level of intensity and activity found in days 1 and 2 for a full week.
Finally the administrative nightmare that would be booking rooms for early arrivals, late stayers, 3-day only, and 5 day extended passes, and the attendant carpool, bedding exchange, special diet accommodations, etc. would be... "type 2 fun" to steal a phrase from Sam.
I think you guys are all trying to kill me.