I don't even know what "Princeton Schools" are but it sounds like a shitton of resources went into making this decision. I don't think resources were the problem here. When resources are a problem, advanced students aren't what is at issue edit- except maybe for the cases where there are advanced students in disadcantaged neighbourhoods. That could be what this is, I guess.
In terms of whether advanced classes are good, they can be good for the individual student, which I think might be the perspective you are taking.
Wealthy students can move somewhere else or do private school, they have options.
I always prefer opening things up for the lower rung over giving advantages to people who are already ahead or advantaged, but that is a value bias.
"Why is ontology so expensive?" - JH
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