> To game the SAT or ACT you must spend a few thousand dollars during grade 11 or grade 12.
"Or check out a SAT book or two for free from the library.", says my partner from an extremely poor family who got into college on the basis of her perfect SAT score and whom never would have qualified to a prestigious school on a GPA basis. (And whom was also admitted to law school on the basis of a nearly perfect LSAT, which she studied for only with free and extremely low cost used materials)
> Intuitively, how could it be correct that people pay thousands of dollars on these courses
People, particularly those to whom a thousand dollars isn't a big deal, spend all kinds of money on speculative and outright ineffective treatments. Including mystical mumbojumbo, quack medical treatments, and products and services which accomplish nothing except contributing to the 'identity' they present to themselves and others. ("I am a parent who cares, look I spent $zillions getting Jr the best opportunities!").
> To game the GPA takes four years of study and prep and you must start doing it at the beginning of grade 9. Tens of thousands of dollars and preparation+work over multiple years. To game the SAT or ACT you must spend a few thousand dollars during grade 11 or grade 12.
I think on this point we're agreeing to a great extent but we're drawing opposite conclusions. I agree SAT improves with focused study, though I believe that improvement is available for free (other than time and knowing you should do it).
You seem to agree with me that it is very expensive to hyper-optimize GPAs, requiring costs and actions extremely early and on a sustained basis.
My conclusion from this is GPA optimization relatively more available to students with more affluent families, because it takes more time, more money, and requires it earlier and more speculatively. -- we don't have an option where you can't improve your performance with the input of time,money, care but we can choose metrics where the available improvement is available to more people.