Even in the case of IEP's and ability to provide what those students need there's almost no oversight on how much some of these districts may/can spend arriving at a plan which will best serve that child.

An insane, surreal amount is frequently spent actually litigating with parents. That's billable hours, TAX dollars spent by some districts, parents shell out ridiculous amounts to access their legally mandated education. Not all districts choose to do this.

Our district here in upper Dauphin county PA is notorious for it. Laid off 2 teachers citing "budget" during just ONE case where more than their salaries was spent on lawyers. State allows it. Next district over? Nope. Evaluates, provides what is required.