To Stock's point: IF said purchase was made at a La Sirena-type price-fixing establishment, AND the "kit" included 2 public school outfits plus a gym pants deal, backpack, sneaks, belt, etc, for each child, then I can see the bill getting very close to his aforementioned price.They must have run out or noticed you are a gringo(?).
Adding, however, that only a gringo would pay even 1/2 that. The parents of public school students are not of a demographic that can afford even 5k to send their child back to school