You guys living in the USA are lucky. Here in South Africa we have always struggled to find kits, they are available from 2 LHS countrywide, and one of those has stopped importing them altogether.
At least you have the option of ordering online from Kit makers, the postage makes doing this in South Africa very expensive.
Luckily I have a few SIG kits stocked up and have just bought a Balsa USA stick 40 plus for my son to learn on. Thanks Brian for bringing in Balsa USA kits!