CAMMAN Australia!

Got my ETA (Electronic Travel Authority) approved today, which means I can visit Australia for up to three months.  Debating on whether or not I want to apply for an actual visa or not.  If I do, I can stay for up to two years, and get a job while there.  If I just keep the ETA, I can only visit, and have three months max.  NOT getting a visa is probably better, because then I have to come back.  But is that really better? HMMM!!!!!  Three months should be enough... right?  GAH! What if I never want to leave???