I was wondering how it fits into his theory that SAT scores aren't bullshit because they're based purely on knowledge and aren't affected by time spent studying for them, which I don't think is true.
And, no, how much you spend on tutoring does matter. A SAT course you take with a whole class, which is less expensive, is not going to help you as much as working individually with a private tutor, which is more expensive, would. And, beyond that, some private tutors are better then others, and thus cost more. It's just a fact.