Re-draw catchment areas.
Should be done in many urban areas.
Probably have something like a 5 year window of free for all where kids can choose their clubs and if they have siblings younger than that then they can stay with “family” club, but after that its like the school system.
Also an opportunity for clubs to actually get attached to schools.
As for pating top dollar. If the government helped GAA and club in these cases i don’t think you can put a value on green space in urban areas. We do not have enough of it.
Most lads here have lived away. Look at all the reserved green space in other countries