For this point: "If you prohibit people from on-selling their tickets, then you also causes losses when people change their minds but are already locked in by t

For this point: "If you prohibit people from on-selling their tickets, then you also causes losses when people change their minds but are already locked in by the lottery." You could just have a return program. 30 days out it is free, 10 days out and you pay a small percentage but get your money back. You don't need to rely on selling tickets to others to get your money back