I know I'm reaching here but I would absolutely LOVE to see on-site payouts for events if tickets are reconciled early enough in the weekend. Sometimes the events we run cost several grand and it would be much easier to expand and do more if we were not floating that budget for the 60 days following the con.
Even if Gen Con set certain requirements for this such as; Deadline for tickets, no tickets added after deadline, must pickup check on Sunday Night / Monday etc. I'd be willing to see what is possible in order to make the process easier for the sake of growing our events.