Presumably it will cover all the point releases, which typically happen after a new product release. It will also cover every machine authorized with your Mac'

Presumably it will cover all the point releases, which typically happen after a new product release. It will also cover every machine authorized with your Mac's app store account. I have 3 boxes. If we assume 5 point releases before the next paid upgrade, that's 63 gigs transferred. At your rate, that's $11.34.