Yes, the AFL banks a lot from finals...They do it every year, at every ground. Somebody has to pay for football in NSW/QLD/Tas, but before you complain about them ripping money out of WA, think for a moment about the AFL's deal with the MCG... Do you think the AFL pays the same price to 'rent' the ground that the clubs pay during the year, or are the Vic clubs, once again, subsidising the rest of the league?
A minimum of 4 finals a year at the MCG makes a mint for the AFL, and unlike the WA clubs in this article, the clubs will be lucky to get anything, and the local league nothing (VFL not being ground manager).
The WA clubs would get a cut for selling the corporate facilities on the AFL's behalf. The AFL would have no idea how to do it otherwise on such short notice.
If Victorian clubs provided a service to the AFL of similar value, i'm sure they'd get a similar amount of money.