Yes. You read that correctly. We are not rich, to be sure. We spend all our money on the kids' education/activities, at the expense of our own savings/retirement/leisure/vacation. Probably not the best strategy, I realize. I will likely hit up the grandparents to see if they can help some. But, yeah. Like I said, I really wish AoPS had some corporate/alumni sponsorship (a la CTY, where my son had a full scholarship this summer) to fund an endowment for financial aid. I think that many companies and grateful alumni would contribute to assist budding mathematicians of lesser economic means.