It would be fantastic if people could add themselves to a waitlist for a certain ticket and if someone cancels, the system would automatically notify the next person on the waitlist and give them the opportunity register/pay within a certain number of days before moving onto the next person on the waitlist. The automation of working through the waitlist, might be complicated so the ability to at least let folks add themselves to the waitlist and then we could manually work through the waitlist would be nice too so we aren't keeping the waitlist on a separate spreadsheet.