Maybe in fall when they send us information about seat selection and payment plans, they will want more cash then. Stuff like that will thin out the heard a bit.
I know for Vancouver I pay 10% now for my next year tickets, they payments from july-january. But Vegas for instance, they did have payment plans...but they started months before their first game and you would have been almost paid up in full before their first game was even played. If they want the money early, it will really mess up scalpers with 20 or more seats. Even people with 4 that need to sell half to be able to afford to go, might reconsider.