Hydra, I am simply saying that the state should be aiming for each of those clubs to run their own domestic competitions, if that is not the strategy - then you will continue to be as you are - a small player base, albeit generally well regarded in terms of talent.
You have lost significant ground to private providers and chuches basketball - go and grab it back - that has certainly happened in other places.
Adelaide backs up at over 1.1 million people.
Ballarat has about 90,000 and one association with about 3000 players. Bendigo similar. at those ratios adelaide should have at least 30-35 thousands basketballers - it is a strong basketball town.
(BTW, Geelong, with just under 200,000 population - has three "largish" basketball associatons and a small one within its boundaries - the bigs all numbering over 1500 players and one around 3000 - Corio Bay).
Mckinnon basketball in Melbourne does not control a single venue but runs successful association based competitions in the shadow of organisations like Hawthorn and Sandringham - who are huge.
Hawthorn, who number over 500 teams, so probably 4k+ players, do not control any venue at all and pay probably the hightest court rentals in Australia yet they continue to make their model work - they are now one of the largest associations in Australia, never mind melbourne, and few people ever hear of them. They do everything on ad-hoc court rental agreements - and they pay through the nose for the privelege. They do not control a single canteen or bar anywhere in their venues btw.
Wanna talk congested - which seems to be part of your argument? Try Ringwood, Nunawading, Knox & Blackburn - all within a bees dick of each other - they range from huge to tiny but all run successful domestic comps in venues literally minutes from each other. They do not need to co-operate to do it - its a little like the fast food theory, McDonalds builds next to Red Rooster and KFC because together thaty builds a bigger customer base for all - but they don't cooperate.
I did not say you could achieve it straight away, but not trying to achieve it is defeatist - and flys in the face of well managed basketball all over Australia. It's not naieve to suggest that Adelaide should have a bunch of strong domestic competitions.
You do not need co-operation between clubs to make domestic competitions work - you need a preparedness to grab each and every venue you can. and build domestic as the base for your elite.