When I said that I was talking about the school I go to and the alternative public school that I was thinking of going to.
My brother who is two years older than me went to a public school, which in his year was one of the better performing public schools in NSW. Out of his 10 units, he was only taught about 50% of the course in IPT, because his teacher either didnt turn up to class or left out massive chunks, and his english teacher was a joke. We he complained and asked to be moved to another class, nothing was done, so in the end, he ended up geting tutoring for these subjects. In fact, his IPT tutor was the IPT teacher from my school. In my school if a teacher wasnt teaching the class something would be done immediately. Again this is a personal experience, and I'm not making generalisations becuase I do know people who have gone to public schools and had great teachers and gotton 99+ UAI's, but if I had to choose between my school and his, I know where I would be going.
And btw. I'm at my school on a scholarship, so once you factor in all the tutoring that he had it doesnt make my school all that much more expensive. As for more opportunities, we are offered many extra curricular activities which would not be available at my alternative public school, so for me private was the option.