I've already explained some of the consequences to you;
- You make your city an exploitable resource to the league and the clubs, which makes them less inclined to support you getting your own team as they'd prefer keep the resource around to exploit when needed.
- There're no long term benefits for the sport locally, and it puts the sport locally into a boom bust cycle which is damaging and makes it reliant on NRL/AFL clubs being in town for it to be successful on a local level, which is also damaging.
- Teams coming and going creates a sense of abandonment that leads to the clubs and the league being resented by locals overtime, and once that resentment becomes widespread it has serious knock on effects for the sport locally. BTW I don't know how you can deny that this happens when this thread was literally created by somebody that was resentful of the Storm's abandonment of the SSC.
I also don't know how you could possibly suggest that it was the Rabbitohs and other NRL clubs playing games in Perth that was instrumental in the sports regrowth in Perth/WA and not the work of the WARL and help and investment from guys like John Sackson and Peter Cumins. They did all the work, they invested all the time and money, they made the growth possible, the Rabbitohs et al. just blew in, collected a paycheck, soaked up all the glory, and then pissed off back home.
Look, it's obvious that you think you know better despite having next to no experience with this stuff compared to what Canberra (or Tasmania) has, and that I'm never going to be able to convince you. So you are just going to have to experience it for yourself, and in 10,15,20, years time when Perth is starting to really feel the negative effects just remember that you were warned.