Well, I liked it on principle. It's absolutely amazing how many people don't understand what pi is (I'm no saying you necessarily Night_Hawk, just in general), mostly because they weren't taught it or because it was presented in such an obscure way at a developmentally inappropriate time. We're learning more and more now, younger and younger and some really basic (and frankly cool) ideas are dropped by the wayside. Kids are doing calculus at 16, but if you ask them to explain, derive, or approximate pi they think you're batty. I know I wasn't taught this. I had a Sunday school teacher of all people go off on some kind of math tangent once (tangent, har har) and show it to us. No idea why.