If the bureaucracy to go to Queensland/SA/Tasmania is at the same level as going internationally by March 2022, I plan to do exactly that.
The most insulting thing is the states that exempt their own residents from the same testing requirements - e.g. Tasmania where you can go to Melbourne and Sydney for 7 days and not require a test, but a person from Sydney can't go to Tasmania for a weekend without either (a) faking symptoms/lying to a health officer to get a free test or (b) paying $70++ to get a test.
If people lie and try to access free tests, I hope NSW Health fines them for doing fake symptoms tests for not isolating while waiting for their result as I expect many of them won't want to interrupt their holiday. $11K should do the trick, particularly if they are an interstate resident seeking to go home and access the testing system in NSW.