If you want to do it again, go for it
Utmost respect for arranging this, as should be given to anyone that puts effort in to an event. It's negative critics that piss me off, although there has only been positive feedback on this event that I have seen.
It will always be the same loads of people will be up for it in principle, but when reality kicks in, numbers dwindle it's just the way it is.
Stick with it.