You might want to do the maths on this.
17,000 members tickets to the Grand Final per club. 100,000 Collingwood members, all whom would like to go. Premium paid for a membership that will get you the opportunity to buy a grand final ticket if we make it. And you can't just wait until we make it to get to pay for the right to buy a ticket- when we're half a chance that list is full with a waiting list, so you pay that premium every year.
Versus
Northern Club - buy a standard membership - when you make it, buy a grand final ticket. Drive or fly to Melbourne. Pay for a night in a hotel.
It's significantly cheaper in the long run for a Northern Club to watch their team in Grand Finals than a Pies fan. WCE are the most expensive.
Fly to Melbourne on very very inflated airline prices due to the Grand Final, and then stay in a hotel with very inflated prices for the same reason.