From an economic scale perspective, I don't think you can just parcel out an individual student's "cost" like this. Put another way: the tax is lower than the

From an economic scale perspective, I don't think you can just parcel out an individual student's "cost" like this. Put another way: the tax is lower than the net individual cost. I suspect that most school voucher advocates understand this, and see it as a convenient way to additionally weaken public schooling.